Possible answers:
(a). play bouncing the tennis balls between bars located on the floor..
(b). get onto sequences and hit the ball back toward the net..
(c). in the beige polo attempt to hit the object while gesturing to other men holding tennis rackets, and bring the balls to the rag ball area..
(d). hit the tennis ball after it bounces off the wall as onlookers watch through the glass wall..Choose from options above and answer: What most naturally follows?

Two men in sneakers and sweatpants stand on the other side of a glass walled gym room and hit a tennis ball against a wall. the men
Answer:
(d).