The correct response is "Assembly of Centuries and Assembly of Tribes."
Reason: In the context of ancient Rome, the Senate had veto power over various legislative actions, as did the consuls, who could block legislation. However, the Assemblies (both the Assembly of Centuries and the Assembly of Tribes) did not have veto power; they were primarily responsible for passing laws and voting on war and peace but did not have the authority to veto decisions made by the Senate or consuls. Therefore, these assemblies did not possess veto power.