In the Earth's Crust, Lower Density Igneous Rock Such as _________

Multiple Choice

In the Earth's crust, lower density igneous rock such as _________ make up the continents, and higher density volcanic rock such as _________ make up the ocean floor.

A) limestone; granite
B) granite; iron-rich silicates
C) granite; basalt
D) limestone; sandstone
E) marble; basalt