The posts of Novgorod and Kiev were founded in what would later become Russia during the 400's and 500's. These became a prominent centers. A. military

B. travel

C. trading​

Magma forms by partial melting of upper mantle and crust. partial melt means that only a fraction of the available material forms a melt, and that the remainder stays solid. the partial melt rises because of its lower density and ascends through he crust. this is so conclusive mean the answer would be magma igneous rocks or balistic magma.

Idon't  see a map but it goes to d.christianity with about 2.1 followers today