(which of the following) best describes how movement and ideas impacted the sub-continent of india during the gupta?
a. there was very little in the way of cultural exchange due to the geographic isolation of the bulk of the population.
b. the control of the asian trade routes to the north brought in a free flow of ideas that infiltrated the indian subcontinent.
c. a thriving trade along the majority of its coasts brought many people to the seaports to support the traders.
d. the difference between the guptas and other cultures became obvious as cultural exchange increased during the golden age of india.
e. as wealth grew from trade of its many trade locations and seaports, the arts, architecture and sciences experienced significant growth.