The Granulation Pattern That Astronomers Have Observed on the Surface

The granulation pattern that astronomers have observed on the surface of the Sun tells us that:

A) the Sun is a lot cooler on the inside than on the outside
B) the Sun's surface is made of a thin solid that cracks easily
C) hot material must be rising from the Sun's hotter interior
D) the solar wind must consist of very small (low-mass) particles
E) the Sun accumulates a lot of dirt and dust because of its large gravity
Section 15.2: The Solar Cycle