Mason Company always collects rent in advance from its customers . The 2011 income statement for Mason report ent revenue of $18 000 . The related balance sheet accounts for the beginning and end of the year were : Jan . 1 , 2011 Dec . 31 2011 Unearned Rent $3 750 $6 500 Based on this information , the amount of cash collected during 2011 from Mason's customers wa as A. $28 250 B . $26 , 500 C . $20 , 750 D. $7 750