When in Total Lunar Eclipse, the Moon Shows a Reddish

Multiple Choice

When in total lunar eclipse, the Moon shows a reddish color because:

A) light from the northern and southern lights (the aurora) on Earth, which is predominantly red, illuminates the Moon.
B) this is the color of the residual thermal glow from a still-warm Moon, after the abrupt removal of the heat of the Sun.
C) the Moon is illuminated only by the residual glow from the dark side of Earth, which is predominantly red.
D) the red part of the solar spectrum, predominantly, is deflected onto the Moon by Earth's atmosphere.