If Granulation on the Sun's Surface Is a Result of Convective

If granulation on the Sun's surface is a result of convective motion below it, with material upwelling at cell centers and returning between the cells, what is the expected temperature distribution across a granular cell?

A) The center of the cell will be cooler than the edges.
B) The center of the cell will be hotter than the edges.
C) Alternate cell centers will be hot and cold, with the edges at an intermediate temperature.
D) The temperature will be uniform across the cell because the photosphere conducts heat readily.

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