Nick and Sheila Preston are married and have purchased a comprehensive major medical policy which covers them and their two sons, Wally and Brent. The policy has a $500 calendar year family deductible, a $2,500 stop-loss provision, and an 80% co-insurance clause. The following losses occur:

A On January 1, 2013, Sheila was treated for an infection at a cost of $200,

B On July 1, 2013, Wally was treated for an injury suffered while waterskiing at a cost of $10,000

C On December 5, 2013, Nick underwent eye surgery at a cost of $1,500, and

D On January 5, 2014, Brent was treated for a broken leg at a cost of $2,000. How much will the insurer pay for each of these losses?