4.The sun has many different layers that describe its structure. In which layer is the temperature of the sun cooler than the core and dense enough that thermal radiation is sufficient to transfer the intense heat of the core outward? A. photosphere
B. convection zone
C. radiation zone
D. photosphere

Answerwide-open;

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.