The correct answer is C. Volcanic rocks.
Volcanic rocks are formed when magma or lava cools and solidifies on the Earth’s surface. Magma is molten rock that is found beneath the Earth’s surface. Lava is magma that has reached the Earth’s surface. Volcanic rocks are classified into two types: extrusive and intrusive. Extrusive rocks are formed when lava cools and solidifies on the Earth’s surface. Intrusive rocks are formed when magma cools and solidifies beneath the Earth’s surface.
Plutonic rocks are formed when magma cools and solidifies deep within the Earth’s crust. Hypabyssal rocks are formed when magma cools and solidifies at shallow depths within the Earth’s crust. Igneous rocks are formed when magma or lava cools and solidifies.
Plutonic rocks are typically coarse-grained, while volcanic rocks are typically fine-grained. Plutonic rocks are also typically more dense than volcanic rocks.
Some examples of volcanic rocks include basalt, andesite, and rhyolite. Some examples of plutonic rocks include granite, diorite, and gabbro.
Igneous rocks are the most common type of rock on Earth. They make up about 80% of the Earth’s crust.