Which Person Illustrates the Crystallization Stage of Occupational Development

Which person illustrates the crystallization stage of occupational development?

A) Brian just graduated from college and is starting his new job as a software engineer.
B) Andrew is a 16-year-old boy who has met with his guidance counselor to discuss different career choices and possible majors in college.
C) Douglas is a 30-year-old who has been working as a dentist for three years. He is thinking about starting his own practice.
D) MacKenzie switched her major two times and has finally settled on a major in biology.