The Walker Company uses the accrual basis of accounting. Walker Company's wages expense account had a $510,000 balance at the end of the year. The wages payable account had a $23,000 balance at the begining of the year and a $45,000 balance at the end of the year. How much cash was paid for wages during the year? 

a. $588,000 

b. $610,000 

c. $632,000 

d. $555,000 

e. 22,000