Morgan was diagnosed with inoperable colon cancer and told he had probably six months left to live. Two months after the diagnosis, Morgan begins to write letters to his children and old friends, telling them all the things he feels he should have said but didn't. According to Elisabeth Kübler-Ross, what emotion is he most likely experiencing?

A) anger
B) acceptance
C) negotiation
D) depression

Morgan's actions of writing letters to his children and old friends, expressing his feelings and things he wishes he had said, indicate that he is coming to terms with his diagnosis and the limited time he has left. This behavior aligns with the acceptance stage of Elisabeth Kübler-Ross's model of the five stages of grief, which describes the process individuals often go through when facing their own death or a significant loss.