Which subfield of psychology focuses primarily on educational, social, and career adjustment problems?

Counseling Psychology

Explanation:

You can think of it as the soft branch of Psychology, where counsellors are there to assist people in everyday, emotional, physical and issues that arise as part of being humans.

They target people and seek to find well being and go through a crisis or stressing situations resulting from the workplace.

Counselours are also often present in schools to talk with parents and students and find the best way of improving education habits, or if some children show abnormal behaviour they will seek counselling. In many cases when they cannot get along well with their peers or have other inner needs counselours will give a hand.