I am not so sure what you mean by "what kinds of unions were formed", but if you're talking about the Civil War then I think the unions were Confederate and Union. The Confederates wanted to run the country with slavery while the Union fought against slavery. Do not quote me on that though.
Answer:
What are you trying to say cause this really make much sense
The answer is A<span>. a plan devised by FDR to add new justices to the Supreme Court who would rule in favor of New Deal legislation</span>.
Back then, the new deal legislation involved a lot of controversial issue regarding the allocation of power to the central government. In order for this legislation to be favored, Frank Delano Roosevelt had to change the current justices position and changed it into the younger and more progressive justices.
