The correct answer is:
To plot memorial events or experiences.
A personal experience timeline is a plot of memorial events and experiences that are used to help a writer generate a topic.
A writer could want to use an event that has caused him emotion or curiosity in the past, to generate a topic. In that case, a personal experience timeline is a tool that allows to organize the writer's past experience and discover forgotten memories.
Answer:
He uses humor to point out the absurdity of American officials' justifications for the Vietnam War.
Explanation:
Chomsky, who is a linguist, focuses much of his speech on the justifications provided by U.S. officials for their involvement in Vietnam's civil war.