This is a test of commonsense with single/multi-choices. Complete the next sentence:

A boy is playing with a ball. Kids are practicing lacrosse on a field of grass. a man in a black jacket

Choices:
(a). is standing by him talking..
(b). is watching them play..
(c). is walking in front of the camera..
(d). is sitting in his chair..
The answer is:
(b).