Read the following passage: The movement of tectonic plates buries a rock deep inside Earth. Intense heat and pressure change the mineral composition of the rock and transform it into Rock A. Rock A melts and comes out to the surface of Earth during a volcanic eruption. The molten rock cools rapidly to form Rock B. Which statement is most likely correct? Rock B may have fossils. Rock A may have shiny, glassy surface. Rock A is composed of layers of sediments. Rock B has a fine grainy texture and small crystals.
