During 2014, Unruh Company Had $160,000 in Cash Sales and $1,400,000

During 2014, Unruh Company had $160,000 in cash sales and $1,400,000 in credit sales. The accounts receivable balances were $180,000 and $212,000 at December 31, 2013 and 2014, respectively. Using the direct method of reporting cash flows from operating activities, what was the total cash collected from all customers during 2014?

A) $1,368,000
B) $1,592,000
C) $1,560,000
D) $1,528,000