The balance in the supplies inventory account was $24019 at the beginning of the year. During the year, a total of $92290 of supplies were purchased. These were debited to the supplies expense account. At year end, a count of office supplies revealed that there was $10204 of office supplies on hand. What is the office supplies expense for the year? Select one: O a. $106105 O b. $78475 O c. $92290 O d. $10204