Task: Question Answering
Input (English): The students in a class would like to make 20 paper sailboats for a race. The students will select one design and collect the materials they need to construct the boats. Which of the following is the best way for the students to be sure the paper sailboats will float without tipping over in the water?  
 (A) construct a prototype of a boat for testing (B) calculate the total mass of all of the finished boats (C) determine the total amount of weight each boat can carry (D) test the strength of each material used to construct the boats
Output (English): A