Where is MOST of the mass of the Sun concentrated?

Question

Quizplus · Accepted Answer

The majority of the mass of the Sun is concentrated in the inner core, where nuclear fusion reactions take place and the pressure and temperature are highest. The convective zone is a region where hot plasma circulates, but it contains a much lower mass than the inner core. The photosphere is the visible surface of the Sun, but it is only a thin layer with a relatively low density compared to the core. Thus, the correct answer is D.

Where Is MOST of the Mass of the Sun Concentrated