Final answer:
Oncology Nursing is the best area for Rupert who is motivated by a personal connection to cancer, as oncology nurses work closely with cancer patients and their families.
Step-by-step explanation:
If Rupert's inspiration to become a nurse is rooted in his desire to help patients and families affected by cancer as his grandmother and sister were, the best fit area of nursing for him would be b) Oncology Nursing. Oncology nurses specialize in treating and caring for patients who have been diagnosed with cancer. They help with cancer treatments such as chemotherapy and radiation, provide postoperative care, and offer emotional support to patients and their families throughout the difficult journey of cancer treatment and recovery.