[One of the following sentences is nonsensical. Which one is it?
Options:
- Sentence A: "we can work in the night thanks to the electricity"
- Sentence B: "we can work in the night thanks to the sunlight"
]
My step-by-step solution first: The sun sets at night making it dark.... The answer is [Sentence B]
[Pick which sentence is not logical.
Options:
- Sentence A: "China is a developed country"
- Sentence B: "China is a developing country"
]
My step-by-step solution first: China's economic and other strength belongs to the level of developing countries.... The answer is [Sentence A]
[Of the below sentences, which one does *not* make sense?
Options:
- Sentence A: "The knife is very sharp."
- Sentence B: "The knife is very soft."
]
My step-by-step solution first: The knife is made of iron and steel. It's very hard.... The answer is [Sentence B]
[Which of the following sentences is nonsensical?
Options:
- Sentence A: "fire is hotter than ice"
- Sentence B: "fire is colder than ice"
]

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
My step-by-step solution first: Fire is an oxidation reaction which gives off heat.... The answer is [Sentence B]