When kept in water, grapes become turgid.

Answer: Option A

Bloated : swollen with fluid or gas.
Simple : easily understood or done; presenting no difficulty.
Rotten : suffering from decay.
Fomented : instigate or stir up (an undesirable or violent sentiment or course of action).
Turgid : swollen and distended or congested.

Synonym of Turgid is Bloated