When you are in the resistance stage of stress, your body is damage caused in the alarm stage.
a. causing
b. repairing
c. delaying
d. multiplying?

When you are in the resistance stage of stress, your body is Repairing damage caused in the alarm stage. 
Resistance stage is a form of coping mechanism that your brain do so you could cope up with the stress. But, the resistance stage won't fully eliminate stress as long as you don't take care the root of the problem