Following Beauregard's bombardment in 1861, Confederate forces occupied Fort Sumter and used it to marshal a defense of Charleston Harbor. Once it was completed and better armed, Fort Sumter allowed the Confederates to create a valuable hole in the Union blockade of the Atlantic seaboard.
D. Personification is giving non-human things such as animals and objects human qualities. Such as the stars danced.
Poets use abstract concepts because such ideas can be easily understood and make the poem universal. 100%sure
D is probably most likely.
A "run-on sentence" is a sentence with seemingly no end.