(C) Carvings in monument walls suggest that the Toltec's wheeled ceramic toys somtimes had ritual uses in addition to being used by both children and adults as decorations and playthings.
(D) Wheeled utility vehicles were used during the twelfth century in many areas of the world， but during this time wheeled toys were not very common in areas outside Veracruz.
(E) Some of the wheeled ceramic toys were found near the remains of monumental stuctures.