How do metaphors and expanded metaphors differ

A metaphor, is a comparison between two unlike subjects. An extended metaphor is when an author uses a metaphor throughout a long passage or even an entire poem. An author would use an extended metaphor to create a clearer comparison between the two items

answer: common sense was the pamphlet that thomas paine used to convince reluctant americans to abandon the goal of reconciling with britain and to accept that independence was the only option to preserve their liberty.