I would go with B: terra-cotta.
HOPE I HELPED!!!
Secondary; The events are 100 years apart. There is virtually no chance of it being primary.
Answer:
Before secession, there were 11 states in the United States of America. This is in the 1860's btw
Okay, so obviously nuclear weapons proved to be a threat that would possibly destroy the world. The Soviet Union and the United States build up a stockpile of nuclear weapons and used the fact that the world may be destroyed to keep the other country at bay.
