Context: This is a piece of calcarenite. It is made up of sand-sized pieces of a rock called limestone.
Sometimes, limestone is eroded and then deposited in layers. When layers of limestone pieces build up, the lower layers can get pressed together into calcarenite.
What type of rock is calcarenite?
A. sedimentary
B. igneous
C. metamorphic
From the given choices, pick the correct answer and respond by indicating the letter of the correct option.

A