Answer:
In the spring of 1860, Harvard professor and well-regarded romantic poet Henry Wadsworth Longfellow began working on a poem about an otherwise obscure messenger ride by American patriot Paul Revere on the evening of April 18-19, 1775. Longfellow hoped to use the story of Paul Revere’s ride as a vehicle to warn the American Union that it was in danger of disintegrating (which it was). Even though there is good evidence that Longfellow knew the real story of Revere’s ride (from Paul Revere’s 1798 letter to Dr. Jeremy Belknap of the Massachusetts Historical Society, published in a magazine Longfellow had almost certainly read), Longfellow chose to simplify and rearrange parts of the story in the interests of creating a better and more effective poem.
the answer is B