Granite is mainly composed of quartz and feldspar particles and is obtained from igneous rocks.

Granite is a common type of igneous rock that is widely used in construction and other applications. It is known for its durability, strength, and aesthetic appeal. In order to understand why granite is obtained from igneous rocks, let's take a closer look at the formation of granite and the rock cycle.

The Rock Cycle:
The rock cycle is a continuous process that describes how rocks are formed, transformed, and recycled over time. It consists of three main types of rocks: igneous, sedimentary, and metamorphic.

Igneous Rocks:
Igneous rocks are formed from the solidification of molten magma or lava. When magma cools and solidifies underground, it forms intrusive igneous rocks. Granite is an example of an intrusive igneous rock. The slow cooling of magma deep within the Earth's crust allows for the growth of large mineral crystals, including quartz and feldspar, which are the main components of granite.

Sedimentary Rocks:
Sedimentary rocks are formed from the deposition and consolidation of sediments, such as sand, silt, and clay. Over time, these sediments are compacted and cemented together to form sedimentary rocks. While some sedimentary rocks may contain quartz and feldspar particles, they do not typically have the same composition and characteristics as granite.

Metamorphic Rocks:
Metamorphic rocks are formed from pre-existing rocks that have been subjected to high temperature and pressure. This causes the minerals and texture of the rock to change without melting it completely. While some metamorphic rocks may contain quartz and feldspar, they are not typically associated with the formation of granite.

Conclusion:
Based on the rock cycle and the formation of granite, it is clear that granite is primarily obtained from igneous rocks. The slow cooling and solidification of magma deep within the Earth's crust allow for the growth of large mineral crystals, including quartz and feldspar, which give granite its unique composition and characteristics. Sedimentary and metamorphic rocks may contain quartz and feldspar particles, but they do not typically have the same composition and characteristics as granite. Therefore, the correct answer is option 'C' - igneous rocks.