B. Truman doctrine is the answer.
"Renaissance" is a French word meaning "rebirth". The period is called by this name because at that time, people started taking an interest in the learning of ancient times, in particular, the learning of Ancient Greece and Rome. The Renaissance was seen as a "rebirth" of that learning.
I hope this help
The popular belief is that <em>they do. </em>The process has to be happening over time for it to be effective and bring on an actual change.