The Balance in Accounts Receivable at the Beginning of 2018

The balance in accounts receivable at the beginning of 2018 was $300. During 2018, $1,600 of credit sales were recorded. If the ending balance in accounts receivable was $250 and $100 in accounts receivable were written off during the year, the amount of cash collected from customers during 2018 was:

A) $1,600.
B) $1,650.
C) $1,550.
D) $1,900.