Final answer:
The subject of this question is Social Studies. The situation described can be considered deliberate or accidental depending on the intent behind the person's action. Option b.
Step-by-step explanation:
The situation described in the question pertains to social interactions and personal behavior. It is not related to any specific subject such as Mathematics, History, or Science. Therefore, the subject of this question is Social Studies.
In the given scenario, where the person's boot is touching the student's foot, the answer to whether it is on purpose or not depends on the intent of the person involved. If the proximity of the foot is intentional and intended to make the student uncomfortable or invade their personal space, then the action can be considered deliberate. However, if the foot placement is accidental or coincidental, it can be categorized as accidental.