Suppose Two Boys Are Trapped on the Ice Atop a Frozen

Multiple Choice

Suppose two boys are trapped on the ice atop a frozen pond, and that the ice is completely frictionless. The boys are initially at rest, but they do have a baseball. They begin to play catch with the ball. Which of these is true?

A) The boys only move while the ball is in the air.
B) They will be stuck on the ice until rescued.
C) The more times they throw and catch the ball, the faster they will get to shore.
D) If after a few throws the ball is not caught and rolls away, the boys will be stuck on the ice.