Read this sentence from lines 25 and 26.
When magma comes close to the surface, it heats ground water found trapped in porousrock or water running along fractured rock surfaces and faults.
Which best tells how the word "porous" is used in this sentence?
A) to describe how liquid sits underneath the rock
B) to describe how liquid clings to the rock
C) to describe how liquid can pass through the rock
D) to describe how liquid sits on top of the rock