The correct answer is A. Wanting to move because you found a great new school somewhere new.
Step-by-step explanation:
In migration, a pull factor is one that attracts an individual to go to one place, for example, a job opportunity or better living conditions. This differs from a push factor because a push factor motivates a person to leave a place and move to a new one, for example, a war or lack of job opportunities.
In this context, the one that is an example of a pull factor is "Wanting to move because you found a great new school somewhere new" because a great school is a factor that pulls or attracts individuals to a new place. Also, other factors such as not enough resources, jobs, or no home make an individual leave a place or pushes him (push factors).