It honestly depends on the context of the situation, but I think it is "I have to go to school".
'their' because the sentences says one of the speakers. it doesn't clarify if the speaker is a boy or girl.
In my opinion, the correct answer is A. <span>She has made it many times. Phoenix's path grows out of its context into a symbol of her durability, patience, and determination, in spite of her old age and fragile health. Even the fact that her memory sometimes betrays her doesn't mean she has lost her cause.</span>
Because now people have to work on thanksgiving
