Which of these is a way to lose a point in tennis?

Question

AStumped

BCaught

CKnocked on

DDouble faulted

Select from the options above.

Correct Option: 4  

Explanation:
If the ball lands outside the service box or does not clear the net or the net post, it is known as a 'fault'. If any part of the ball touches the line, the ball is in (as shown above). After one fault the server may try again. If both tries result in faults, a 'double fault' is called and the opponent wins the point.