How important is enthusiasm in one’s life according to the statement “It is the paste that helps you hang in there when the going gets tough” in Para3?
选项：

A:. It can turn a boring drive into an adventure, extra work into opportunity and strangers into friends.
B:. It can motivate people to move ahead even in tough situations.
C:. It can help people find pleasure in their work.
D:. It can help old people start a career.