Different states may have different laws about what goods can be transported and who can use the water ways
umm I am not sure but I think it's option A
I believe it is the 'domino theory' as one country falls then pushes the next to fall and so on and so forth. Just like dominos.
Answer:
The Constitution provides that an amendment may be proposed either by the Congress with a two-thirds majority vote in both the House of Representatives and the Senate or by a constitutional convention called for by two-thirds of the State legislatures.
