TOEFL Listening: TPO-TOEFL听力TPO - 020I177H2C41L36UR$

Why does the professor mention his previous jobs? A. To explain why the woman should study physics, math, and chemistry B. To recommend that the woman get a summer job on a fishing boat C. To point out that industry jobs can lead to a teaching career D. To confirm an assumption the woman made about finding a job