A high school student has begun to investigate the field of finance as a career choice. In deciding about the field, the student should focus on which question first?

A: Will I find a balance between financial rewards and personal satisfaction from work?
B: How many people do I know who work in this field?
C: Once I train for this area, how long before I will be at the top of the field?
D: Are there people in this field who are dissatisfied with their jobs?