Which of the following is not a piece of evidence supporting the idea that Europa may have a subsurface ocean?
A) Europa has a magnetic field that appears to respond to Jupiter's magnetic field.
B) Photos of Europa's surface show regions that appear to consist of jumbled icebergs frozen in place.
C) Astronomers have detected small lakes of liquid water on Europa's surface.
D) Europa's surface shows very few impact craters.
Answer: C