"Evident" means clear and obvious, so the opposite or antonym would be "Indistinct," which indicates something not clear or not easily perceived. Therefore, option (B) Indistinct is the most suitable antonym in this context.

"Absurd" means wildly unreasonable or illogical, so the opposite or antonym would be "Reasonable," which denotes something logical and sensible. Therefore, option (D) Reasonable is the most suitable antonym in this context.

In the context of the sentence, the teacher is asking about the kind of land suitable for growing wheat. "Fertile" means capable of producing abundant vegetation or crops, while "barren" means not suitable for cultivation or lacking in vegetation. Therefore, option (C) Barren is the opposite or antonym of "fertile" in this context.