What is the goal of a thesis statement? to establish focus and make a claim
to explain the author's point of view to the audience
to act as evidence supporting a claim
to summarize what the essay is about

Which sentence logically fits just before sentence 2?
Students who are uncomfortable in their school setting are not as likely to earn good grades or participate in extracurricular activities.
While some programs focus on assisting those who are affected by bullying, others concentrate on changing the behavior of the bullies.
Schools that are able to evoke a sense of school pride and student fellowship typically have fewer incidents of bullying.
Have you ever witnessed an incident in school where one student relentlessly bullies another student just for the fun of it?