A company collects 25% of its sales during the month of sale, 65% one month after the sale, and 10% two months after the sale. The company expects sales of $50,000 in August, $80,000 in September, $90,000 in October, and $60,000 in November. How much money is expected to be collected in October?
a. $55,000
b. $90,000
c. $22,500
d. $79,500