What is it called when each heading and subheading begins with the same type of word, such as a noun, this is called?

What is one purpose of the prologue in sugar changed the world

Which statement best explains douglass's purpose

Why does pumblechook choke on the brandy at christmas dinner? a. he has had too much to drink. b. mrs. joe had only spoiled brandy to serve him. c. pip replaced it with tar water. d. he becomes overexcited telling his story.