What is dialogue?
a conversation between people or characters
a description of the setting
a description of the plot
a summary of a story

A. a conversation between two characters

Explanation:

its repetition emphasizing that the chain is his own. sorry if i am wrong.

compare & contrast informative essay/speech

when speaking or writing for the sole purpose of providing information in order to give audience members a good basis for making a decision, you would present an informative speech or essay.   because you wouldn’t want to be persuading the audience by arguing for one type of exercise over the other, you wouldn’t choose a persuasive/argumentative technique.   to fairly, and without bias, present information about the pros and cons of each type exercise, a compare/contrast, informative speech/essay would be the best bet.