A New Technique Called Adaptive Optics Allows Astronomers To

A new technique called adaptive optics allows astronomers to:

A) change the eyepieces of their telescopes much more quickly than ever before
B) compensate for changes in the Earth's atmosphere and achieve better resolution
C) increase the aperture of their telescopes by connecting several telescopes
D) change the region of the electro-magnetic spectrum in which their telescope is able to detect radiation
E) use the observatory shop to make better eye-glasses for their graduate students