Answer;
-Core
-Radiative zone
-Conventive zone
Step-by-step explanation;
-There are three main parts to the Sun's interior: the core, the radiative zone, and the convective zone. The core is at the center. It the hottest region, where the nuclear fusion reactions that power the Sun occur.
-The radiative or radiation zone; Its name is derived from the way energy is carried outward through this layer, carried by photons as thermal radiation.
-The third and final region of the solar interior is named the convective (or convection) zone. It is also named after the dominant mode of energy flow in this layer; heat moves upward via roiling convection, much like the bubbling motion in a pot of boiling oatmeal.