The Brown Ovals Seen in Jupiter's Atmosphere Appear Bright in an Image

Multiple Choice

The brown ovals seen in Jupiter's atmosphere appear bright in an image taken in infrared radiation.Why is this?

A) The ovals are moving toward us, and the Doppler blueshift makes them appear brighter.
B) The ovals are moving away from us, and the Doppler redshift makes them appear brighter.
C) The ovals are high up in the Jovian atmosphere.
D) The ovals are deep within the Jovian atmosphere.