<span>C.)to show the reader the pain Mr. Frank feels being in the attic postwar</span>
The correct rule is "a person could not marry a person of lower social standing."
If you are born into a lower social class & became wealthier, had good behavior, owned more land, etc., it wouldn't change your position.
You are going to be stuck with the same social class your entire life, same thing would happen if your parents were in the lower social class & you became more successful, you would still be in the same class as your parents. You would work the jobs they worked & go through what they have to go through. Though I believe later on it was socially acceptable to marry to a lower class, but it was taboo.
Hopefully this helped of some sort!
Answer:
The 1987 Intermediate-Range Nuclear Forces (INF) Treaty was significant because it required the US and Soviet Union to eliminate all nuclear and ground-based ballistic missiles and cruise missiles. This was big, because it reduced the threat of nuclear war all over the world. Without missiles, the world had a much less threat of destruction.