The Sun's Corona Has a Temperature of Approximately 1 Million

Multiple Choice

The Sun's corona has a temperature of approximately 1 million degrees. At what wavelength and in what part of the electromagnetic spectrum does its radiation peak?

A) 550 nm, visible
B) 2 *10^-5 m, infrared
C) 4 *10^-7 m, ultraviolet
D) 3 *10^-9 m, X-rays
E) 6 m, radio