Task: Question Understanding
Input (English): Question: A student poured some sugar into a glass of water. After the water was stirred, no solid sugar remained in the glass. Which statement best describes what happened? (A) The sugar reacted with water to form elements. (B) The sugar reacted with water to form a mixture. (C) The sugar dissolved in water to form a solution. (D) The sugar dissolved in water to form compounds.?
Output (English): sugar, water., sugar