Why is it important to model optimism when working with a client with disabilities?

To allow the families to see what their loved one can do.

Explanation:

Model optimism is the mental attitude that reflects the hope that the outcome some endeavor might be desirable, positive and favorable. Optimism see the things positively.

The client that has some disability requires the model optimism.  This optimism generates the hope that he might get well soon and generates the positive thinking in the patient. The treatment of the patient with the families and loved one is quite fruitful.

i think the answer is d.