Which is an example of the executive branch imposing a check on the legislature's power to make laws

Assuming that this is referring to the same list of options that was posted before with this question, the correct response would be that the "president vetoing a bill" would be the best example of the executive branch imposing a check on the Legislature's power to make laws, since a President's veto sends the bill back to the Legislature without it becoming a law. 

Ain the free market economic system the government is hands off from all supply and demand rates