阅读下面短文,从短文后各题所给的A、B、C、D四个选项中选出最佳选项。①Tom lived with his grandfather, who is regarded as the wisest man in the village. Many people went to grandfather for advice or help.
②One day, Tom saw three men walking together. They found a single-log(独木)bridge halfway, below which there was a deep river.
③The first man didn't hesitate(犹豫)to step on the bridge and he made it to the other side of the river. The second man came close to the bridge. When seeing the deep river, he was so afraid that he made no move. Encouraged by the first man, he put his feet on the bridge. Although his right foot was hurt in the middle of the bridge, he got there safely. But the third man was the least brave to cross the river. It was getting dark. Behind him were some hungry wolves, he felt hopeless. But he had to be brave to cross the river. Only after a few steps, he fell into the river.
④Seeing the puzzled look on Tom's face, grandfather said sincerely(由衷地,语重心长地), "When in difficulties, the more time it takes to hesitate, the higher price you'll have to pay."