Final answer:
The question involves the Missouri State Highway Patrol's vehicle checks before a driving test and references historical voter suppression methods, falling under high school-level Social Studies.
Step-by-step explanation:
The question's subject pertains to the practices surrounding voting rights and driving tests, which falls under the category of Social Studies.
Specifically, it touches on historical voter suppression methods and modern-day driving regulations. The student is referring to how a driving test examiner conducts vehicle checks and how historical literacy tests were unfairly administered to prevent certain demographics from voting.
These topics involve understanding civic procedures and historical social justice issues, and thus align with high school-level social studies curricula.