During August, 2011, Joe's Supply Store Generated Revenues of $60,000

During August, 2011, Joe's Supply Store generated revenues of $60,000.The company's expenses were as follows: cost of goods sold of $24,000 and operating expenses of $4,000.The company also had rent revenue of $1,000 and a gain on the sale of a delivery truck of $2,000. Joe's income from operations for the month of August, 2011 is

A) $60,000.
B) $39,000.
C) $37,000.
D) $32,000.