Ais the father of b. but b is not the son of a. how’s that possible?

If A is the father of B, but B is not the son of A, there are two possibilities:

1) B is the daughter of A.

2) A is the "father" of A in a religious sense: A is the priest of the community where B lives, so he is regarded as the "father" of B as well as of any other member of such community.

answer; the basal forebrain;

answer; (b) ; /stronger bonds between the nations of africa