What is the term for the period when many western europeans traveled across the atlantic and pacific oceans for the first time?
a. age of mercantilism
b. age of revolution
c. age of technology
d. age of exploration

Answer is D.

Explanation:

In the second half of 15th Century many European countries wanted to find a sea route to India. Main reason for that was the continental blockade of the old Silk Road. Countries such as Spain, Portugal and later France, England etc were sending their sailors in different directions which lead to the finding of new sea routes, but also some continents. During this period they started exploring this new areas and later on colonizing them.

D is correct

Explanation:

the triple alliance. germany and austria-hungary were already allies by 1879 when, worried about a threat from russia, they formed the dual alliance. italy joined the group in 1882. there was a concern about a possible attack from france and the alliance needed powerful friends to defend it.