B..................................................................
The insight teacher her nothing about herself as a writer
Water Energy:
-Not much pollution
-Different ways to get energy (From falling water, from hot steam, etc)
Fossil Fuels:
-Very polluting
-The main way of obtaining energy is to burn the fuel(Such as coal)
A and D are grammatically correct! B and C are 100% incorrect.
In A, you can write "You are quite a..." as "You're quiet a...", but in D ,i don't see an error. So it's a 50-50 in my opinion.
I'm not a 100% sure on the right answer, but i can assure you that the answer is either A or D. Hope it helps!