The Detectors on the Spitzer Space Telescope Were Cooled to near Absolute

Multiple Choice

The detectors on the Spitzer Space Telescope were cooled to near absolute zero in order to:

A) allow the electronics in these instruments to operate most efficiently.
B) keep the telescope more nearly stationary.
C) prevent the infrared radiation from the instruments interfering with the infrared signals fromspace.
D) improve the angular resolution of the telescope.