Which of the Following Would Be Most Likely to Experience

Which of the following would be most likely to experience a problem with role conflict?

A) 65-year-old grandmother who cares for her grandchildren while the mother works.
B) 70-year-old retired business owner who comes to help his son run the business.
C) 75-year-old retired physician who volunteers at a medical screening clinic.
D) 80-year-old retired school administrator who takes educational foreign cruises several times a year.