According to hans selye, people are most susceptible to illness in the stage of the general adaptation syndrome (gas) model.

the exhaustion stage

Explanation:

According to Hans seyle, the body responses to stressors in three stages.

The first stage is the alarm stage where there is a burst of energy and the body is very active.

The second stage is the resistance stage where the body tries to resist this stressors.

The third stage is the exhaustion stage where the body have used up energy and at this stage the body is the weakest and susceptible to illness.

its d- have personal value and positive expectations