Pretty sure it is C because it it divisible by 3. If you divide 15 you get 5 and if you divide 6 you get 2.
Because of the romace the climate the food the energy of people there because of the rich history because of rome and much more
Answer: One reason the U.S. got involved in the Vietnam War was that it was a conflict between communism and a freer system. The communist system cannot produce as much wealth as it consumes because its producers are forced to react to political motives instead of economic motives.
Explanation:
Make transportation easier
Hope this helps :)
