Answer:
Assemblies provided the balance of power, is the correct answer.
Explanation:
The institution in the Ancient Rome which functioned as the machinery of the Roman Legislative branch and passed all the legislation were known as republics. They worked on the basis of direct democracy, in which the common citizens were allowed to cast votes. They functioned on the principle of checks and balances. The assemblies were kept in check by the Roman Senate and the executive. The assembly also used to debate on legislation. The Curia, Tribes and Centuries were other assemblies who were also in charge of passing the laws.