The main way constitutional amendments are proposed is by
1. a convention requested by a majority of state legislatures.
2. a convention requested by the three branches of government.
3. a vote of three-fourths of both chambers of congress.
4. a vote of two-thirds of both chambers of congress.

i truly dont know the answer wait i do its 1,3,4

well it depends i think people around the world are coming around to gay marriage. but if you are talking abortion then wow, so much to talk about. such as men thinking they have the right to choose if women can, the fact there are health concerns if the women can't get one, and many more arguments to discuss. so i would definitely say abortion would be a much more interesting topic.