Based on your knowledge of Olmec civilization, this stone carving best shows which of the following?

A photograph features a large stone carved into the shape of a man's head.
A. It shows that Olmec trade was widespread, since traders shipped carvings such as this across a large area.
B. It indicates the Olmec could organize massive public labor projects.
C. Olmec sculptors carved inscriptions on statues that list the names of rulers and dates and descriptions of events.
D. Olmec temples rested on large pyramid-shaped platforms and were topped with huge stone stelae like this one.