Which of the Following Is Evidence That Convection Occurs in the Layers

Which of the following is evidence that convection occurs in the layers just below the Sun's photosphere

A) Sunspots appear to be cooler than their surroundings.
B) Solar prominences lift large loops of gas into the chromosphere and corona.
C) The solar wind emits large numbers of charged particles.
D) The Sun rotates differentially.
E) The centers of granules are hot and moving upward away from the center of the Sun.