The best answer I'll choose, will be A. I hope this helps you.
The excerpt mentions central government and the states but does not speak (except by mentioning) of executive branch or amendments, so we reject options 2) and 4).
Among options 1 and 3: 3 speaks of central government having the power over the states, which is the opposite of what the text says: it stresses how much power should stay with the states.
So the correct option is 1)
President Madison sent troops to gain control of the West Floridaregion
