TASK DEFINITION: The task is about reading the given context, group and MCQs and then generating answers from the given input. MCQs are multiple choice questions in which a question is asked and few options are given, among which one or in some cases more than one can be the answer.
PROBLEM: context: A person throws a ball straight into the air.<sep>group: directions <sep>question: Immediately after leaving the person's hand, which way is the ball moving?<sep>A: ground<sep>B: sky<sep>C: left<sep>D: right

SOLUTION: Immediately after leaving the person's hand, the ball is moving toward the sky.

PROBLEM: context: A person is sliding four bricks across four hard surfaces. The first surface is covered with frost, the second surface is covered with grease, the third surface is covered with rubber, and the fourth surface is covered with oil.<sep>group: sliding <sep>question: Which brick slides the shortest distance?<sep>A: frost<sep>B: grease<sep>C: rubber<sep>D: oil

SOLUTION: The surface covered with rubber is the hardest for the brick to slide across.

PROBLEM: context: A person is sliding four bricks across four hard surfaces. The first surface is covered with frost, the second surface is covered with grease, the third surface is covered with rubber, and the fourth surface is covered with oil.<sep>group: sliding <sep>question: Which brick slides the shortest distance?<sep>A: frost<sep>B: grease<sep>C: rubber<sep>D: oil

SOLUTION:
The surface covered with rubber is the hardest for the brick to slide across.