Task: Question Answering
Input (English): Two people are pushing a car. One person is pushing with a force of 450 N and the other person is pushing with a force of 300 N. What information is needed to determine the net force applied to the car by the people?  
 (A) the direction of the road (B) the direction of the forces (C) the weight of the two people (D) the weight of the automobile
Output (English): B