Final answer:
The nurse should respond with option b, suggesting healthier ways to cope with grief, such as joining a support group.
Step-by-step explanation:
The nurse should respond with option b. "It's important to find healthier ways to cope with grief. Have you considered joining a support group?" This response shows empathy and offers a constructive solution for dealing with grief. It acknowledges the client's feelings and suggests a healthier coping mechanism.