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.