The answer is C. Anorthosite. Anorthosite is a type of intrusive igneous rock and commonly retrieved from lunar highlands. Anorthosite that are found here on Earth consists of course crystals as opposed to the crystalline-consist anorthosite taken from the moon.
This is the intrusive rock, and they are composed of calcium. The stones also have crystals that are formed during the Precambrian times. The anorthosite is usually considered to be less abundant in basalt and granite how the complex that involves in its occurrence is immense. The rocks are also composed of plagioclase feldspar which is the oldest rock in the moon. They were therefore formed when the feldsparcrystals flooded the magma in the ocean surrounding the moon after its formation.
