One mega watt hour is equal to_________________?
A. 36 x 106 J
B. 36 x 1012 J
C. 36 x 109 J
D. 36 x 108 J
A. 36 x 106 J
B. 36 x 1012 J
C. 36 x 109 J
D. 36 x 108 J