Answer:
Opportunity cost 900,000
Explanation:
The opportunity cost is the cost of the best alternative rejected, in order to do the pcurrent porohect.
The student, if picked to return on collegue, the opportunity cost will be the rejected baseball team or the rejected football team.
In this case, given two alternatives:
one for 20,000
and one for 900,000
the opportunity cost will be of 900,000 as is the best alternative
The opportunity cost for return to college will use this cost.