B. Olmec.
Step-by-step explanation:
The Olmec were a civilization in Mesoamerica that built giant stone heads.
Giant stone heads were an important part of culture to the Olmec people. These stone heads were built out of boulders made of basalt, which is a volcanic rock. They would carve the faces of their rulers into them, in order to remember and commemorate them.
While the Olmec people are mostly known for their carvings of giant stone heads, they were also quite advanced for their time. They grasped the concept of calendars, writing systems, among other things.