How did geography influence Macedonia?
A. The fertile soil was used for farming, which created a powerful kingdom.
B. Macedonians had no access to the sea, so they could not trade easily.
C. Access to the Aegean Sea was important for trade and transportation.
D. The mountainous terrain was great for mining rocks for building materials.

C. Access to the Aegean Sea was important for trade and transportation.

Explanation:

"Macedonia" (ancient) was a small kingdom located in the north of Greece. Its region is located near communication routes, such as the Danube River and the Aegean Sea.  

In the past, it had access to the Aegean Sea which facilitated trade and transportation between people coming from different areas. This is also the reason why many of the ports are currently located along the Greek coasts of the Aegean Sea.

The Greek region of Macedonia is called "Aegean Macedonia."

So, this explains the answer.

it may be wrong but i think its a