Answer:
1. a. The players and coaches were tired
b. He was stubborn, so he was punished.
2. I'm not sure,maybe add which?
3. a. popular
b. adopted
4. impure, harmless
5. hideous, actual
6.
The map was being sketched by Mahesh.
A survey is being conducted by a group of scientists
A dog named Polly was bought by them.
Cricket matches were organized every month by them.
Students will pick up the rubbish.
Neither and nor are used together.
Either and or are used together.
B uses neither and or together, so that is wrong.
C uses either and nor together, so C is wrong.
D uses neither and or together, so D is wrong.
That leaves A.
A used neither and nor together, which is correct.
So the answer is A.