Idiom “A beast of burden” means :

A. a person or animal used for carrying heavy loads or does hard work.
B. a wild animal used in the circus.
C. a dangerous animal.
D. a person who enjoys lifting weights.

Submitted by: Arif Hussain Dahraj

The correct answer to the question: "Idiom “A beast of burden” means :" is "a person or animal used for carrying heavy loads or does hard work.".