Correct Answer: Sandstone

Solution : The correct answer is Sandstone .

Sand grains are compressed and cemented together over hundreds or millions of years to form sandstone, a sedimentary rock. The minerals quartz and feldspar, which were worn off of other rocks and pulverised into pebbles, are frequently what make up the sand grains. The colour of sandstone varies based on the impurities or colour of the sand grains that make up the stone.