"Of" is a preposition in the phrase "Of studying" and "until" is another, as well as "to" in the phrase "to college" so there are 3 in that sentence.
Answer:
It depends on what he is saying. If he says rude things then you can conclude that he is being rude. Let me know what he is saying and then I can help you.
Explanation:
A is correct because it isn't saying his or her and also its using correct grammar.
