Which one among the following statements regarding igneous rock is correct?

Most minerals of igneous rocks are silicates (compounds of silicon and oxygen with other elements). Common silicate minerals include quartz, feldspar, mica, pyroxene, amphibole and olivine. Option (a) is wrong because slow cooling of magma deep within the Earth produces coarse-grained (not fine-grained) igneous rocks like granite; fine-grained rocks form from rapid cooling at the surface. Option (b) is wrong because basalt is an extrusive (not intrusive) igneous rock formed from rapid cooling of lava on the surface. Option (d) is wrong because lithification is a process associated with the formation of sedimentary rocks from loose sediments, not extrusive igneous rocks.