Spectral Lines Observed in the Granules on the Sun's Surface

Multiple Choice

Spectral lines observed in the granules on the Sun's surface near the center of the Sun's disk

A) are split by the Zeeman effect due to the strong magnetic fields in the granule.
B) are always redshifted because granules are caused by gas descending into the Sun.
C) are redshifted near the center of the granule and blueshifted near the edge of the granule.
D) are blueshifted near the center of the granule and redshifted near the edge of the granule.