According to Locher Et Al

According to Locher et al., which of the following ethical issues may arise when conducting research with homebound older persons?

A) The researcher may experience interpersonal conflict.
B) The caregivers of older people may not want their patients or loved ones involved in the research.
C) Researchers may not understand what it is like to be an older person.
D) Older people may mistakenly believe that they are to receive some form of treatment or cure for an ailment.