The career of Jacques Cousteau illustrates that values can shift over the course of a career

focusing on a single task is the best strategy for change

only highly educated people can raise environmental awareness

publicity plays an insignificant role in advancing a scientist's causes

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focusing on a single task is the best strategy for change

Explanation:

The career of Jacques Cousteau illustrates that focusing on a single task in life is the best strategy for the change in the social life of an individual as well as in the society. If a person performs many activities at the same time so its focus and concentration divides over the activities which is not more advantageous as compared to that person who focus on the single task until it is completed so focus on the single task in life is necessary for producing big change in life and in the society.

the answer is a. now keep my answer here.

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