Why do they want him to quit the sport
They probably unhappy about his grades
Answer:
D. These scientists also believe that wind strength is unpredictable and wind energy can only be suitable to particular areas where the wind blows well.
Explanation:
That answer shows that wind energy is unreliable.
Hope this helps:)
It's definitely not C or D.
I think it's A, but B could also be possible.
I'd check over it if I were you :)