B. Constitution
...is the answer to your question :)
To basically make sure you've made your claim clear, and to re-instate your claim just one last time, and add any examples you've missed.
The British would cede all lands east of the Mississippi River and North to Canada to the United States except for Florida, which would be given back to Spain.
The correct answer is actually A. He freed Venezuelans from Spanish rule.
I think the answer is either a or c