Revolutionary groups that have competing goals or visions about what the revolution is to accomplish are called
a. factions
b. assemblies
c. parties
d. radicals

The correct answer is: "factions".

A faction is a party, within a larger organization, that defends ideas which dissent from those of the majority of the members in the organization. The faction might actually constitute a new separate group.

Factions can arise within revolutionary groups, if its members adopt different viewpoints about the goals of the movement. It can lead to the emergence of two separate groups or both factions can coexist within the same organization.

c.

worked constantly and gave many sincere speeches about the importance of independence

union blockade

explanation:

the union blockade in the american civil war was a naval strategy by the united states to prevent the confederacy from trading.

the blockade was proclaimed by president abraham lincoln in april 1861, and required the monitoring of 3,500 miles (5,600 km) of atlantic and gulf coastline, including 12 major ports, notably new orleans and mobile. those blockade runners fast enough to evade the union navy could only carry a small fraction of the supplies needed. they were operated largely by british citizens, making use of neutral ports such as havana, nassau and bermuda. the union commissioned around 500 ships, which destroyed or captured about 1,500 blockade runners over the course of the war.