Sonia Receives an Invoice for $981

Sonia receives an invoice for $981.50 dated September 30, with terms 5/10, 2/20, n/60. She decides to pay it in full on October 25. What is the total amount paid to settle the account?

A) $981.50
B) $932.43
C) $961.87
D) $934.76
E) $962.25