Answer:His opportunity cost of attending college increases making him less likely to attend colllege
Explanation:
Opportunity cost refers to how likely are you to dump or not choose that alternative in favour of the other best alternative when the two options are both your favourite.
Marvin likes both going to college and acting however now he has been presented with an acting opportunity which is very likely that he will choose.
Given going to college and waiting for years to get a job or taking up your an offered job of your favourite career which is going to come with all the beautiful rewards, it is very likely that someone will take the offered job.