The answer is A... sort of. Two-thirds (34) of the state legislatures may apply to Congress to call a Convention of the States to propose amendments to the Constitution. Then, three-fourths (38) of the state legislatures must ratify those proposals before they actually become amendments to the Constitution.
To be called morally upright means that you have high moral standards and character.
It was a. Charles Sumner who opposed the Dred Scott decision. He did this mainly on the grounds that he believed blacks had basic rights when it came to shin for their freedom in free states, which was the case for Scott.
When you say "diversity" I think of many things. So I have many answers:
1. People. Different people farming, means different plants and animals
2. Planting Crops. Planting different crops can prevent soil erosion and or soil exhaustion.
3. On the market. Different crops and meats on the market provides consumers with different products and nutrients they may need.
Idk if this helps, there wasn't much detail. Hope it helps! ;)