Answer:
Core
Step-by-step explanation:
Sun has different layers. Each layer of the Sun is at different temperatures. The fusion of protons, which is called proton cycle (also called Thermo nuclear fusion reaction) gives rise to the heat and light emitted by the Sun's core, The radiation emitted by the sun is the electromagnetic radiation. Gamma rays are a part of the electromagnetic spectrum. Gamma ray photons have very high energy. These originate at the core of the Sun.