How Does the Angular Resolution of the 305-M Arecibo Telescope

Multiple Choice

How does the angular resolution of the 305-m Arecibo telescope in Puerto Rico, which observes radio waves, compare with the angular resolution of the 10-m Keck telescope on Mauna Kea, Hawaii, which observes optical light? Assume each telescope observes the light they were designed to see.

A) It is not possible to compare their angular resolution because they work in different wavelength ranges.
B) The 305-m Arecibo telescope has much better angular resolution than the 10-m Keck telescope.
C) They have about the same angular resolution because angular resolution is limited by turbulence in Earth's atmosphere, not by mirror diameter.
D) The 305-m Arecibo telescope has much worse angular resolution than the 10-m Keck telescope.