Task: Question Answering
Input (English): Many desert animals are only active at night. How does being active only at night most help them survive in a hot desert climate?  
 (A) They can see insects that light up at night. (B) Their bodies lose less water in the cool night air. (C) They are able to find more plant food by moonlight. (D) Their bodies absorb sunlight in the daytime while they sleep.
Output (English): B