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Spector Ltd. had a cash balance of $17323 on the books at the end of December 20x10, The following items were noted by the controller at Spector after comparing the bank statement and the company's cash account: 1. A customer's returned cheque (NSF) was included with the bank statement. The cheque was for $3577. 2. Monthly service charges of $216 were included in the bank statement. 3. Outstanding cheques at the end of December totaled $2318. 4. A December 31, 20x10 deposit of $7690 had not been received by the bank in time to be included in the December bank statement. Which of the following is the correct revised cash balance at December 31, 20x10? Select one: a. $13530 b. $11212 c. 528374 d. $18902