Question

the french emperor, napoleon, in 1803. by doing so, he effectively doubled the amount of land occupied by the united states. (paragraph 1)
what is the metaphor in these lines?
\crowning achievement\
\french emperor, napoleon\
\doubled the amount of land\
\occupied by the united states\
part b
how does the metaphor function within the sentence?
it identifies the location of jeffersons achievement
it describes the global impact of jeffersons achievement
it emphasizes the importance of jeffersons achievement
it symbolizes the expense of jeffersons achievement.

Explanation:

For Part A: A metaphor is a figure of speech that describes an object or action in a way that isn’t literally true but helps explain an idea or make a comparison. "Crowning achievement" uses the image of a crown (a symbol of highest honor) to describe the greatest, most notable achievement, which is a metaphor. The other options are literal statements of fact.
For Part B: The phrase "crowning achievement" uses the metaphor of a crown (representing the highest point of success) to highlight that the land acquisition was Jefferson's most important and notable accomplishment, so it emphasizes the achievement's importance.

Answer:

Part A: "crowning achievement"
Part B: It emphasizes the importance of Jefferson's achievement.