Answer this Question on the basis of the data given in the following production possibilities table. Production possibilities (alternatives) A B C D E F Capital goods 100 95 85 70 50 0 Consumer goods 0 100 180 240 280 300 "If the economy is producing at production alternative D, the opportunity cost of 40 more units of consumer goods is" O A. 5 units of capital goods O B. 15 units of capital goods O C. 20 units of capital goods O D. 10 units of capital goods