A. sports
sports unlike all other terms is superordinate
Answer: B
Explanation: That should be the right answer, I hope I'm correct.
To Express their feelings better !
Answer:
To explain Thoreau's view that we have a responsibility to act
It would be a subordinate cause, for it can't stand on its own. Think about it: Since early this morning. What happened since early morning? Since it doesn't provide that information, it wouldn't be able to be an independent cause.
Also, I don't believe that the sentence is grammatically correct :)
