I think the answer is <span>The land acquired in the Mexican cession should be established as free states. </span>
The answer is B. All other answers relating to the graph would be incorrect with the information given
Since you have not given me the choices, I'll only discuss what is wetland and what are it's danger when it will be destroy.
Wetlands are the places that contains body of water like ponds, seashore, or river.
Since this is a wetland, expected that there will be a lot of species living in their and having their habitat like fishes, frogs, algaes and more.
Now, when this place become destructed, all these species will lost their habitat and soon die.
We all know that in our world, we depend on each other. so what will we do if our food will no longer exist?