Age is a person's age in terms of physical health, while age refers to a person's adaptive capacities as compared to others of the same chronological age.

psychological Age                            

Explanation:

Psychological age: The term psychological age is defined as the process through which an individual acts, behaves, and feels and therefore the psychological age of an individual doesn't need to be equal to his or her chronological age (the age of the person since he or she is born).

However, there's a possibility that an individual's psychological age can be comparatively more than that of his or her chronological age if he or she is mature enough or finds oneself older than he or she is.

In the question above, the given statement represents the psychological age.

we need the diagram to answer this correctly.

d. the polar jet stream   lies between the polar easterlies and trade winds should be your answer