Which situation was a result of the Ottoman Empire's conquest of Constantinople?

A. Europeans began to search for a water-based trade route to Asia.
B. Europeans invaded Spain to weaken Muslim power in Europe.
C. Europeans raised taxes on traders who came from Constantinople.
D. Europeans began to convert from Christianity to Islam in huge numbers. .​

A. Europeans began to search for a water-based trade route to Asia.

A. Europeans began to search for a water-based trade route to Asia.