The correct answer should be <span>b. the Industrial Revolution
It is after this period and during, that labor groups began to organize themselves.</span>
The policy contributed most to the nuclear arms race was Mutual Assured Destruction
This means that both sides knew that any attack upon the other would be devastating to themselves, therefore restraining them from attacking the other. Each side possesses enough nuclear weapons to obliterate the other side that causes them to restrain from attacking afraid of the annihilation.
Answer:
The first town in America was Jamestown, in Virginia. It was established in 1607.