Final answer:
The best thesis statement for a persuasive essay on student parking at school should be managed by a rotating lottery system.
Step-by-step explanation:
The best thesis statement for a persuasive essay would be option A: Student parking at school should be managed by a rotating lottery system. This thesis statement clearly states a stance on the issue of student parking and reflects the purpose of persuasion. It is based on the opinion or observation that a lottery system would be an effective way to manage parking at school.