The Following Data Relate to Swift Company for the Year

The following data relate to Swift Company for the year ended December 31, 2012.Swift Company uses the accrual basis. $$\begin{array}{l}\begin{array} {lll } \text {Sales on credit}&\$250,000\\\text {Cost of inventory sold on credit}&170,000\\\text {Collections from customers}&220,000\\\text {Purchase of inventory on credit}&150,000\\\text {Payment for purchases}&140,000\\\text {Selling expenses (accrual basis) }&40,000\\\text {Payment for selling expenses}&45,000\\\end{array}\end{array}$$ Which of the following amounts represents income for Swift Company for the year ended December 31, 2012?

A) $60,000
B) $50,000
C) $40,000
D) $35,000
E) $30,000