A windmill is taking advantage of strong air currents in order to produce electrical energy. On a typical day the wind speed is around 20 mph and in that speed the windmill produces 400 kw/h (kilowatts per hour). On a stormy day a windmill produces 20% more energy. How much kw/h can three windmills produce in two hours on a stormy day?	Choose the correct choice from the following options:
A) 2880.
B) 4860.
C) 5780
D) 5760
E) 6380.
Normal Day = 400 kw/h   Stormy Day = 400*1.2= 
<gadget id="calculator">400*1.2</gadget>
<output>480</output>
480 kw/h   3 windmills for 2 hours on stormy day     480*3*2= 
<gadget id="calculator">  480*3*2</gadget>
<output>2_880</output>
2880   2880.nswer: 2880.
<result>A</result>
A windmill is taking advantage of strong air currents in order to produce electrical energy. On a typical day the wind speed is around 20 mph and in that speed the windmill produces 400 kw/h (kilowatts per hour). On a stormy day a windmill produces 20% more energy. How much kw/h can three windmills produce in two hours on a stormy day?