Answer:
C. The Confederacy had begun seizing Federal Forts in the
South.
Explanation:
During the civil war in America, there was great fear about the Confederacy succeeding in breaking away from the Union which holds the states together forming a united American country.
The series of attack with the intention to overrun the various military forces Fort is actually what propelled Lincoln to send supplies to fortify Fort Sumter. This is to avoid the military hardwares from falling into the hands of those secessionist.
