One day a tea contractor, Mr. Sharma was working on an estate with his wife and daughter. He noticed a light movement on the edge of the jungle, so he stopped to watch for a moment. To his astonishment a large tigress appeared and came towards Mr. Sharma. The tea contractor was a very brave man. He told his wife and daughter to run towards a nearby road, while he stepped to fight the tigress with a knife.
The tigress sprang at Mr. Sharma and knocked him down, but he managed to wound it with his knife. As a result, the tigress and Mr. Sharma knocked each other unconscious. Luckily for Mr. Sharma, a friend heard the noise of the fight and came to investigate. He found Mr. Sharma and carried him to the road. Then he stopped a car and sent the injured man to a hospital, where he eventually recovered.
The tigress disappeared for a few days but was later hunted down and shot by a Game Ranger. The Game Ranger discovered that the tigress had injured her paw in a wire trap and had been unable to hunt wild animals in its normal manner.
When did Mr. Sharma's friend go to see what was wrong ?

Options

A. When he saw the tigress attacking his friend
B. Just before the tigress was knocked down
C. When the friend was knocked down
D. When he heard something unusual