The voyages of european exploration during the 15th and 16th centuries were made possible mainly by
a) the protestant reformation.
b) the success of the crusades.
c) many new or improved technologies.
d) a desire to prove the earth was round.

B) the success of The Crusades.  

Explanation:

The voyages amid the fifteenth and sixteenth hundreds of years were made conceivable for the most part by the European nations, for example, Spain, Portugal, and England, that supported them monetarily, since these countries needed the pilgrims to guarantee land in the New World for them.

the answer should be:

their party has more members.

if i am right, give me a 5 star rating!

answer: the ocean

explanation: if you map out 30 n and 40 n latitude, you will get the ocean