The only preposition in the options available to you is of, so the correct answer is C.
A) and B) are conjunctions.
D) is an adverb.
The character’s actions are steady and reliable
B. Zaroff respects Rainsford and thinks that he will be a worthy opponent.
Zaroff knows Rainsford is intelligent and will be a worthy oppenent because he hasn't had one thus far in his game. He's heard of Rainsford and is aware of his celebrated status as a renowned big game hunter so he's confident in him.
Paul was walking into the college room smart and grinning .His clothing had outgrown him a little,and the beige/tan soft velvet at the collar on his over coat that was open that had turned into a worn and wrinkled; but for that there was a dandy thing about himself, he wore a pin that was oval shape in his
4-in-hand that was black and neatly knotted and a carnation that was crimson in his button hole.This Latter adornment that the school had somehow felt befitting a boy spirit under the banning of suspension
