The balance in accounts receivable at the beginning of 2013 was $640. During 2013, $2,400 of credit sales were recorded. If the ending balance in accounts receivable was $230 and $200 in accounts receivable were written off during the year, the amount of cash collected from customers during 2013 was:

$2,400.

$3,040.

$2,810.

$2,610.