"Adam Smith" would most likely agree with this statement, since it was Smith who argued for these types of innovations in capitalism in his book "The Wealth of Nations".
The Flexible response was a policy implemented by President John F. Kennedy in 1961 in order to substitute the New Look and the massive retaliation policy that Dwight Eisenhower's had introduced, which consisted on responding using a greater force in case of an attack, and such force involved nuclear weapons.
On the other hand, the flexible response policy aknowledges the Mutual assured destruction if nuclear weapons are involved, as the enemy with shoot back too. It aimed to provide a manner of responding to agression across the spectrum of war but without the employment of nuclear weapons.
I think is the Nullification crisis and the war he fought.
"<span>d. They wore animal skins for clothing" would be the best option from the list, although it should be noted that a better definition of "prehistoric" would be that writing didn't exist. </span>
