Use the following information to answer the given question Rufai, a vulcanize bought 4 machines for N20,200 and incurred the following expenses for the year ended 31st December, 1990 \(\begin{array}{c|c} Glue & N2,100 \\ Thread & N600 \\ Kerosene & N900 \\ Rubber & N558 \\ Matched & N110\end{array}\) He received N5,772 from customers. Two machines were later sold for N6,990 and N5,670 respectively. What is his revenue receipt?
A. N18,432 B. N12,660 C. N6,990 D. N5,772 E. N5,670
