What Is the Main Reason for Building Large Optical Telescopes

Multiple Choice

What is the main reason for building large optical telescopes?

A) It's the best way to see through clouds and other light-absorbers in the atmosphere.
B) It's the best way to collect as much light as possible from faint objects.
C) It's the best way to nullify the blurring effects of the Earth's atmosphere and thus produce higher resolution images.
D) It's the best way to magnify objects and make them brighter.