Question

Which term describes an igneous rock that forms quickly on earth's surface from cooling lava?

Answer 1

C: extrusive

Extrusive rocks are a type of igneous rock that form at the crust's surface as a result of volcanic activity.

Intrusive and plutonic form below the earth's surface.  Clastic are sedimentary rocks.

Answer 2

C: extrucive.

Out of these 4 it makes the most sense