What Is the Purpose of Interferometry

Multiple Choice

What is the purpose of interferometry?

A) It allows two or more small telescopes to achieve the angular resolution of a much larger telescope.
B) It is designed to prevent light pollution from interfering with astronomical observations.
C) It allows two or more small telescopes to achieve a larger light- collecting area than they would have independently.
D) It reduces the twinkling of stars caused by atmospheric turbulence.