この商品は人気があるから、十日ぐらいで売り切れるはずだ

Can someone explain what the で in this sentence means? As far as I know で has
these 3 meanings: 1 - (連用形) of the assertive auxiliary (断定の助動詞), or "copula",
だ/です 2 - 主体を表す。This で is used to indicate the agent of the action. 3 - で as
marking "how". It specifies how something happens.
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2021-11-29T06:41:25.353
91384
2021-11-29T06:47:40.090
47028
question
meaning
この商品は人気があるから、十日ぐらいで売り切れるはずだ