Task: Question Understanding
Input (English): Question: Mark planted 15 corn seeds in clay, 15 corn seeds in sand, and 15 corn seeds in potting soil. He gave each plant the same amount of water and placed them all in the same classroom window. What question can be answered by this experiment? (A) What type of soil allows corn to grow the best? (B) Will corn grow while inside a building? (C) How much water does corn need to grow? (D) How much light does corn need to grow?
Output (English): planted, corn, seeds, potting, soil., question, answered