Jim Yount, M.D., keeps his accounting records on the cash basis. During 2011, Dr. Yount collected $360,000 from his patients. At December 31, 2010, Dr. Yount had accounts receivable of $50,000. At December 31, 2011, Dr. Yount had accounts receivable of $70,000 and unearned revenue of $10,000. On the accrual basis, how much was Dr. Yount's patient service revenue for 2011?
a. $310,000.
b. $370,000.
c. $380,000.
d. $390,000.