Which sentence contains clauses that are properly parallel?
AHe is conducting the symphony today, he led the band tonight, and he is singing in the choir tomorrow.
BIf you're mailing oversized envelopes, each one needs to be stamped, sorted, and you're addressing them in black.
CThe horses pulled the wagon up the hill, trotted down the other side, and then paused to rest at a stream.
DI will be notifying each of you by e-mail, I will list your scores, and I will be scheduling your telephone interviews.
AHe is conducting the symphony today, he led the band tonight, and he is singing in the choir tomorrow.
BIf you're mailing oversized envelopes, each one needs to be stamped, sorted, and you're addressing them in black.
CThe horses pulled the wagon up the hill, trotted down the other side, and then paused to rest at a stream.
DI will be notifying each of you by e-mail, I will list your scores, and I will be scheduling your telephone interviews.