Task: Question Understanding
Input (English): Question: How do the spines of a cactus help it survive? (A) Spines help the cactus get moisture. (B) Spines anchor the cactus in the ground. (C) Spines protect the cactus from animals. (D) Spines support the stems and branches of the cactus.?
Output (English): spines, cactus, help, survive?