Which of the Following Is the Biggest Disadvantage of Putting

Multiple Choice

Which of the following is the biggest disadvantage of putting a telescope in space?

A) Astronomers don't have as much control in choosing what to observe.
B) Astronomers have to wait until the telescopes come back to Earth to get their images.
C) Space telescopes can only observe in certain parts of the electromagnetic spectrum.
D) Space telescopes don't last long before they fall back to Earth.
E) Space telescopes are much more expensive than similar ground-based telescopes.