Congress was designed to be fast and efficient at decision-making representative of diverse interests and constituencies both "a" and "b" neither "a" nor "b"

both "a" and "b"

Explanation:

The National Congress is a political institution that exercises the Legislative Power. It consists of the House of Representatives and the Federal Senate (formed by senators). The main activities of congressmen relate to the functions of legislation and oversight of other powers. Because of its functions, it is necessary for the congress to be quick and efficient in its decision making, and the members of the congress must be representatives of various interests and constituents.

the three answers (for plato at least) are:

b-condemned sola fida 

d-set rules for establishing seminaries and for educating clerics in the seminaries 

f-recommended moderation in the sale of indulgences and banned the sale of false indulgences 

women should have the same rights as men