Volunteers Who Continue Their Volunteer Work for More Than Two

Volunteers who continue their volunteer work for more than two years tend to be motivated by .

A) the need to gain career-relevant experience and to strengthen social relationships
B) the need to gain understanding and enhance their own self-esteem
C) the need to act on values such as humanitarianism
D) the need to strengthen social relationships and to gain career-related experiences
E) the need to reduce negative feelings,such as guilt,and to exercise skills that are often unused