While you do not capitalize school subjects themselves, you do capitalize the names of specific classes, therefore the words "history" + "physics" + "art" should be capitalized.
Answer:
Rec·i·proc·i·ty
The practice of exchanging things with others for mutual benefit, especially privileges granted by one country or organization to another.
Explanation:
You start with the title, put n.d. (which is no date) and paragraph number.