GMAT Sentence Correction (SC) | Re: The first shots of the American Revolution, fired at

The first shots of the American Revolution, fired at Lexington and Concord. Massachusetts, were, according to legend, heard around the world, but news of theseshots, which were sent by swift messenger, took four days in reaching New York City as well as another additional eleven days to reach Charleston, South Carolina.

A. shots, which were sent by swift messenger, took four days in reaching New York City as well as another additional eleven days
B. shots that was sent by swift messenger took