Which of the following is not a reason the romans developed colonies and built extensive road systems?

a.) the romans developed colonies and built road systems to maintain their conquered territories.
b.) the romans developed colonies and built road systems in order to conquer more territory.
c.) the romans developed colonies and built road systems to open trade and travel between their conquered territories.
d.) the romans developed colonies and built road systems to provide their rulers with safe havens in case of siege.

during the 20th century, the role of the vice president has evolved into more of an executive branch position. now, the vice president is usually seen as an integral part of a president's administration and presides over the senate only on ceremonial occasions or when a tie-breaking vote may be needed.

biological/genetic factors means they were born or predisposed to have something. nothing can really change it, and you can't really do much to "fix" it. it isn't something learned

these are the biological factors:

adrian is relatively tall and he is on the basketball team

(adrian can't ever stop being tall or force himself to be tall. likely one or both of his parents are tall as well and they passed on the tall gene. he probably does basketball because he is tall)

the rest are environmental/cultural factors. these are things that are taught to us. for example, cynthia wasn't born saving pocket money, her family most likely taught her this (environmental factor)

hope this !