During the cold war, the notion of kept both the united states and the soviet union from using their nuclear weapons, but also kept each on constant alert in case the other dared to act first. a. mutual active deterrence
b. multilateral accord doctrine
c. mutual assured destruction
d. military action detonation

c. mutual assured destruction.

Explanation:

Mutual assured destruction (MAD) is a military strategy of the modern world which is based on the principle of deterrence. It is based on the notion that two or more opposing sides possessing nuclear weapons pose a threat to one another of the mass destruction or total destruction. This prevents one side to initiate the first strike. Therefore after the second world war possession of nuclear weapons was considered important but according to this theory use of them led to complete annihilation.

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while it was true that the cotton gin reduced the labor of removing seeds, it did not reduce the need for slaves to grow and pick the cotton.

explanation:

before eli whitney's invention of the cotton gin, picking and cleaning cotton was a slow, labor-intensive job. workers, usually slaves, had to pick the seeds from the cotton fibers by hand. this invention made it possible to grow large amounts of cotton on big farms and make money.