Which of the following is an igneous rock usually composed of the minerals quartz, feldspar and mica that is formed when hot molten rock cools relatively slowly underground?

Granite is a coarse-grained intrusive igneous rock. It forms deep beneath the Earth's surface through the slow cooling and solidification of magma, allowing large crystals of quartz, feldspar, and mica minerals to form. Amphibolite and Gneiss are metamorphic, while Siltstone is sedimentary.