A Typical Refracting Telescope Is Made Up Of

A typical refracting telescope is made up of:

A) a long-focal-length lens at the front and a short-focal-length lens at the rear (next to your eye as you look through the telescope) .
B) two mirrors, one concave, the other convex.
C) a mirror that gathers and focuses the light and a lens next to your eye through which you examine the image.
D) a short-focal-length lens at the front and a long-focal-length lens at the rear (next to your eye as you look through the telescope) .