Below Are Two Images of the Milky Way at Different

Multiple Choice

Below are two images of the Milky Way at different wavelengths. Which one was taken at infrared wavelengths, and why do you think so?

A) A; there are many cool stars in the image, which emit a lot of infrared light.
B) A; the dust in the galaxy mainly blocks infrared light and lets visible light through.
C) B; we see mainly warm dust emitting thermal radiation.
D) B; infrared light passes through the dust so we can see the galaxy's structure more clearly.
E) B; stars in the central bulge shine only at infrared wavelengths.