請依下文回答第 42 題至第 46 題：
        Because we are living longer than ever, more psychologists and social workers have begun to study ways ofcaregiving to improve care of the elderly. They have found that all caregivers share a common characteristic: they all feelthat they can do the job better than anyone else. Social workers interviewed caregivers to find out why they took on theresponsibility of caring for an elderly, dependent relative. They discovered three basic reasons. Many caregivers believedthat they had an obligation to help their relatives. Some stated that helping others made them feel more useful. Othershoped that by helping someone now, they would deserve care when they became old and dependent. When people carefor an elderly relative, they often do not use available community services, such as adult day-care centers. If the caregiversare adult children, they are more likely to use such services, especially because they often have jobs and otherresponsibilities. In contrast, a spouse, usually the wife, is much less likely to use support services or to put the dependentperson in a nursing home. Social workers discovered that the wife normally tries to take care of her husband herself aslong as she can in order not to use up their life savings. Researchers have found that caring for the elderly can be a verypositive experience. However, even when caregiving is satisfying, it is hard work. One consideration is to ask parentswhat they want before they become sick or dependent. Perhaps they prefer going into a nursing home, so they can selectone in advance. On the other hand, they may want to live with their adult children. Caregivers must also learn to beassertive and ask for help from others, especially siblings. Brothers and sisters are often willing to help, but they may notknow what to do. We can expect to live longer lives than ever before. Caring for the elderly and being taken care of canbe a mutually satisfying experience for everyone involved.
42 According to the passage, what is the shared feature of all caregivers?
(A) They feel they have no way but to accept the job.
(B) They think the elderly will appreciate what they do.
(C) They feel they can do the job without any difficulty.
(D) They believe they can do the job better than anyone else.