The three successive phases of the general adaptation syndrome are

1. Alarm phase

2. Resistance phase

3. Exhaustion phase

Explanation:

General adaptation syndrome (GAS), is a three-stage process that describes the physiological changes that a body goes through when subjected to stress It includes three phases:

1. Alarm phase:  promotes the activity of the sympathetic nervous system

2. A resistance phase: during this phase organisms makes efforts in order to cope with the threat.

3. An exhaustion phase: This phase occurs when the organism fail to overcome the stress and depletes the physiological resources.

answer; (b) i believe the correct answer is : /eliminate health disparities and improve the health of all population groups;