In This Universe, One Can Consider Four Different Regimes of Space

Multiple Choice

In this universe, one can consider four different regimes of space in which distances between objects might be changing as a result of the general expansion of the universe: (1) distances between different parts of Earth, (2) distances between planets in the solar system, (3) distances between stars in the Milky Way Galaxy, and (4) distances between superclusters of galaxies. In which of these regimes are the distances changing because of the universal expansion?

A) 4 and 3
B) 4, 3, 2, and 1
C) 4, 3, and 2
D) 4 only