Igneous rocks that crystallize from magma and are composed almost entirely of quartz and feldspars have a(n)
granitic composition
andesitic composition
ultramafic composition
basaltic compoosition

The correct answer is:

a granitic compostion

Explanation:

Granite is fashioned mainly of quartz and feldspar with minor amounts of mica, amphiboles, and other minerals. This crystal composition normally produces granite a red, pink, gray, or white color with dark mineral fragments visible everywhere the rock. Igneous rocks are made from lava or magma. Magma is the melted rock that is under and lava is the molten rock that explodes out on the surface. The two main types of igneous rocks are plutonic rocks and volcanic rocks. Plutonic rocks are produced when magma cools and solidifies underground.

option c is the correct answer.