<span>Lack of technology to use them caused the cold war leaders to hesitate to use nuclear weapons.
</span><span>B. Lack of technology to use them </span>
Explanation:
The period from 1920 to 1929 is known as the Roaring Twenties. ... The prices of their stocks steadily increased through the 1920s, going on a wild ride upward between 1926 and October of 1929. Stock prices went far beyond realistic values and had little basis in the health of the companies.
