1. C: she would not go to the choral concert.
Her not going to the concert caused her to fail the course and not be allowed to re-take it. The F and the inability to retake the course would be the effect.
2. False
Many events can have more than one cause and more than one effect. Effects, especially, can be high in number because one cause can set off a chain of events that affect a lot of different people.
From...
pretty sure, that's the answer choice.
im not 100% sure but im pretty sure 1. d and 2. a
i hope its right, but im pretty sure it is
D. address any opposition to his or her claim