My interest group believes that this policy would be best for atlanta:

D. latin america followed by africa

I'm pretty sure it's c. extremely gradual but not 100% sure though.

Answer b is the answet

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.