What Property Is Shared by Earth and Europa,one of Jupiter's

Multiple Choice

What property is shared by Earth and Europa,one of Jupiter's large moons?

A) The Earth and Europa have both been shown to harbor intelligent life in their oceans.
B) The Earth and Europa both have thick atmospheres of nitrogen and oxygen.
C) The Earth and Europa both have oceans of liquid water.
D) The Earth and Europa are about the same physical size.