How was the neolithic period different from the paleolithic period?

Which of the following is an example of one of the successes of the marshall plan? a. a few eastern european countries decided to turn to democracy. b. western european economies were stronger than they had been before wwii. c. borders between western and eastern european countries shifted. d. eastern european countries eventually took part in the plan. ( answer in the format above so i can understand)

The development of greek culture was most influenced by the dorian invasion the region’s climate and geography the trojan war indo-european migrations

(05.04 mc) how did the roman transportation system keep the empire strong? plz