I encountered the following multiple-choice question on page 118 (question 4
in section 3) of my JLPT N2 grammar textbook 「新完全マスター文法 日本語能力試験Ｎ２」:

> 朝のラッシュは何とか（ ）ものか。
>
> ａ ならない ｂ しない ｃ なれない

I had little clue and guessed 「ｃ なれない」. The answer given is 「ａ ならない」.

In fact, I hardly understand the sentence at all. My textbook explains ～ないものか
on page 117 as

> ### ～ないもの（だろう）か
>
> 実現は難しいが、何とかして～ということになってほしい。
>
> 可能動詞や話者の意志が入らない動詞につく。

My rough translation would be "if only ...", suggesting an unlikely scenario
(実現は難しい). I chose 「ｃ なれない」 because なれる is a 可能動詞, but I do not think I
understand the sentence. Here are my failed attempts at translating the
sentence completed with each of the three options:

> (a) 朝のラッシュは何とかならないものか。
>
> (?) If only the morning rush somehow became.

> (b) （？）朝のラッシュは何とかしないものか。
>
> (?) If only (I) somehow did the morning rush.

> (c) （？）朝のラッシュは何とかなれないものか。
>
> (?) If only the morning rush could somehow become.

Apparently, my translations make little sense. I feel that I am
misunderstanding either 朝のラッシュ (referring to ラッシュ・アワー?) or なる (become?
succeed? pass?). Why is 「ａ ならない」 the right answer? What does the sentence
(especially the word なる) mean in that case? What am I missing here?
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question
grammar meaning negation jlpt particle-mono
Understanding the sentence 朝のラッシュは何とかならないものか
This seems to be relevant

[何とかなる -
Jisho.org](https://jisho.org/search/%E4%BD%95%E3%81%A8%E3%81%8B%E3%81%AA%E3%82%8B)

何とかなる is an expression meaning "to be able to manage somehow". Consequently,
何とかならないか is "can't (we) manage it somehow" or "(we) need to do smth about it"

All together it seems to "(we) need to do smth about the morning rush" or
"can't we do smth about the morning rush"
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answer
@[Yaroslav Fyodorov](https://japanese.stackexchange.com/users/39017/yaroslav-
fyodorov)'s [answer](https://japanese.stackexchange.com/a/95997) and
@[sundowner](https://japanese.stackexchange.com/users/45489/sundowner)'s
[comment](https://japanese.stackexchange.com/q/95995#comment156311_95995)
brought my attention to the phrase
[なんとかなる](https://jisho.org/search/%E3%81%AA%E3%82%93%E3%81%A8%E3%81%8B%E3%81%AA%E3%82%8B),
which means "to be able to manage somehow or another". From this information,
I came up with an understanding of 朝のラッシュは何とかならないものか that is different from
@Yaroslav Fyodorov's:

> 朝のラッシュは何とかなる
>
> (lit.) somehow manage the morning rush
>
> The morning rush will turn out fine.

> 朝のラッシュは何とかならないものか。
>
> I wish the morning rush will turn out fine.

which makes much more sense than my translation attempts in the OP. This
concludes the analysis of the correct answer 「ａ ならない」.

@sundowner's comment pointed out that 何とかなる does not have a 可能形 form because
it is a non-volitional verb (無意志動詞, or 話者の意志が入らない動詞 as my textbook phrases it
in its definition of ～ないもの（だろう）か) according to an
[answer](https://japanese.stackexchange.com/a/95742) of theirs. Thus, it is
superfluous to turn ならない into 「ｃ なれない」.

As for 「ｂ しない」, there does not
[seem](https://jisho.org/search/%E4%BD%95%E3%81%A8%E3%81%8B%E3%81%99%E3%82%8B)
to be a special phrase 何とかする, and する is neither a 可能動詞 nor a 無意志動詞, so 「ｂ しない」
is not an acceptable option. Incidentally, I wonder if the interpretation
provided in Yaroslav Fyodorov's can be translated as

> （？）朝のラッシュは何とかできないものか。
>
> Can't we do something about the morning rush?
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answer