Why were europeans so interested in exploration in the 1400s and 1500s?
a. they sought knowledge, power, and riches.
b. they needed land for their growing populations.
c. they believed it was their destiny to spread across the globe.
d. they wanted to spread christianity.

The main reason why Europeans were so interested in exploration in the 1400s and 1500s was because "A. they sought knowledge, power, and riches," since the primary goal of the Spanish was to obtain as much gold and silver as possible, and the primary goal of the French was to collect furs. The British were more interests in producing tobacco, sugar, and other commodities.