The Presence of Liquid Water on Earth's Surface Is ____________

The presence of liquid water on Earth's surface is ____________.

A) not surprising because many other bodies in the Solar System have liquid water
B) unique in the Solar System,but is an inherent feature of Earth that would be found regardless of the Earth-Sun distance
C) unique in the Solar System;liquid water would not have developed had Earth been much closer to or much farther from the Sun