Wind energy is a very clean source of energy and it is very economical compared to burning of coal for producing electricity. Wind energy does not cause pollution compared to burning of coal that release harmful gases like CO(carbon(i)oxide) . wind energy are converted directly to electricity by the generator for immediate usage.
Wind energy is renewable and sustainable and a very clean source of energy compare to burning of coal.
The only disadvantage over burning of coal is that the turbines are too large.
Personally I would say it's A (apart from the installation costs which may make it a little expensive) but it does involve certain aspects of D also as wind energy doesn't cause pollution. So either A or D!
