Which of the Following Sentences CORRECTLY Describes an Advantage of a Large

Multiple Choice

Which of the following sentences CORRECTLY describes an advantage of a large refracting telescope over a large reflecting telescope?

A) A refracting telescope is not subject to as many aberrations as a reflecting telescope.
B) A refracting telescope has no obstruction that blocks part of the light entering the telescope.
C) The lens in a refracting telescope can be made larger than the mirror in a reflecting telescope.
D) A refracting telescope does not sag like a reflecting mirror does.