Animals can’t speak our language. They can’t tell us when they are unhappy or annoyed.

A. If animals could speak, they would be able to tell us when they are unhappy or annoyed. 

B. One day we could speak animals’ language and know when they are happy or annoyed. 

C. We don’t know when animals are unhappy or annoyed because we don’t know their language. 

D. We don’t understand animals because we can’t speak their language.