Respuesta :
Answer;
D. Dark spot
Explanation;
- The parts of a star includes the core, radiative and convective zones, photosphere, chromosphere and corona.
- Corona is the outermost part of the star that extends for million miles into the space.
- Photosphere is a part of the star outside the stellar zones, where visible light is emitted.
- Radiative zone is a layer of the star outside the core where energy is transported by radiation.
- Chromosphere is a layer outside photosphere. In the sun this layer is red colored from an abundance of hydrogen gas.
- Therefore, in our question, Dark matter is not a layer or a part of a star.