The US Constitution gives the legislative branch the power to make laws. What is this an example of?

a) federalism

b) separation of powers

c) implied powers

d) forbidden powers

Only the legislative branch of the government has the power to make laws: this means that the other don't have this power.

This power is however explicitly stated in the US constitution - so it's not implied.

The correct answer is that it's an example for the separation of powers: between the branches of the government.