Plz help im begging

A light wave traveling through medium 1 strikes a boundary with medium 2 at a 45° angle. The light then enters the second medium and refracts away from the boundary. What could the two mediums be?

A. Medium 1: glass
Medium 2: diamond

B. Medium 1: water
Medium 2: air

C. Medium 1: diamond
Medium 2: air

D. Medium 1: glass
Medium 2: water