A cooperative had a $75,000 net margin for fiscal year 2022. The board decides to allocate 40% of the net margin for patronage refunds. What will be Patron D's total patronage refund for the 2022 fiscal year if the sales of the cooperative were according to the table below?

Patron	Sales through Co-op
A	250 units
B	300 units
C	250 units
D	200 units

select an answer

a: $6,000

b: $7,500

c: $15,000

d: $10,000