The correct answer is A. Technological advances such as s<em>team power, air brakes, automatica lubricators and steel tracks</em> have affected the railroads very positively, since it has made it possible that the rail network could become a safer, more efficient and more reliable means of transportation for goods.
Answer: Flexible Response was President Kennedy's policy for resolving Cold War conflicts. It served as a rejection of Eisenhower's massive retaliation policy, including its reliance on nuclear weapons. ... Implementation of the policy led to greater defense spending on conventional and unconventional forces and weapons.
and for detente...Détente (pronounced day-tont) is a word that means less tension and a better relationship between two countries. The main example of a détente was during the Cold War. In the 1970's, the United States and the Soviet Union improved relations.
flexible response and delente both were used for trying to better the relationships in the cold war.
Explanation:
A). They succeeded in overthrowing the French colonial government, but failed to established a strong economy.
