We use pronouns so that we are not repetitive.
Answer: A) or the first option.
A pronoun is really a word that takes the spot of a noun, without pronouns sentences really wouldn't make sense or be clear here are examples.
Deaththekid101 answered a question
He answered a question
The spider is crawling
It is crawling
Zaxby's is the best resturaunt
This is the best resturaunt
See? pronouns take places so its important we have them.
The answer is Miss Stacy<span> ... who </span>will<span> study every day after school to prepare for the </span>entrance exam<span> to Queen's ... They study for an hour every day, but begin to lose </span>their<span> drive when spring comes and the other </span>students<span> leave school early every day</span>
