Hello, I could probably answer it more surely if the question was provided in its original format. But for how it was presented, I believe the answer would be C. A callout.
A callout (or call-out) in publishing is a short excerpt within a bigger text, somehow highlighted to call the reader's attention out to that part, specially. It can be a short string of text with its words connected by lines, dots, arrows, or similar, a sentence in bold separated from the text, or written in a different format, usually in a larger font. - This one is very common in magazines and newspapers. (and I believe this is the type that was presented on this excerpt original format).
The Marshall Plan was considered a huge success as its financial aid helped to restore infrastructure in Western Europe after World War I.
<h3>What is the Marshall Plan?</h3>
This refers to the American initiative in 1948 to provide aid to Western Europe during the aftermath of WWI.
Hence, we can see that your question is incomplete as it does not include the first part and therefore, a general overview of the Marshall Plan is stated.
Read more about The Marshall Plan here:
brainly.com/question/1373135
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I don't know what passage.