Where two plates slide or grind past each other: A. they form a subduction zone and one plate sinks into the mantle B. they form a mid-ocean ridge C. they form a transform boundary D. they form a mountain range

C. They form a transform boundary.

Explanation:

A transform boundary is when two plates slide past each other.

radiative zone

explanation    

radiative zone is the layer of the sun which energy is transferred away from the core by radiation. although, the core is the only part of the sun that produces an appreciable amount of heat through fusion. in fact, 99% of the energy produced by the sun takes place within 24% of the sun's radius.