How Do Astronomers Take Such Detailed, Close-Up Pictures of Ring

How do astronomers take such detailed, close-up pictures of ring systems?

A) They send satellites to the outer planets to take pictures for us.
B) They take them using backyard telescopes, just like Galileo did.
C) They take them using the largest optical telescopes on Earth.
D) They have astronauts in space take pictures of them.
E) They wait until the planet is closest to Earth and use the Hubble Space Telescope.