Which radio wave technologies would be unaffected by satellites that are not working properly?

A. space communication and television broadcasting

B. television broadcasting and GPS

C. MRI and radio telescopes

D. radio telescopes and space communication

C. MRI and radio telescopes

Let's take a look at the options and pick the one that doesn't involve the use of satellites.

A. space communication and television broadcasting

* The phrase "space communication" should be a massive clue that satellites are involved. So this is a bad choice.

B. television broadcasting and GPS

* The GPS system relies upon a constellation of 24 satellites plus some spares. So this is also a bad choice.

C. MRI and radio telescopes

* MRI stands for Magnetic Resonance Imaging and uses a machine on the Earth and has no association with any satellites. And radio telescopes are used by astronomers for their work and also doesn't rely upon satellites (although they're likely to be happy if the satellites aren't transmitting since that would be noise source no longer active). So this is the correct choice.

D. radio telescopes and space communication

* Once again, the phrase "space communication" should provide a clue that satellites are involved and that this is a bad answer.