Answer: B---Trade with other civlizations.
Explanation:The Olmecs were the first great Mesoamerican civilization ( from 1200 -400B.C), existing in the Mexico’s Gulf coast,that is the present-day states of Veracruz and Tabasco, from about 1200 to 400 B.C. The Olmec were known as being great artist and traders who traded with other civilizations for example with Mokaya civilization of the Soconusco region by exchanging their artworks of polished celts, masks, figurines and statues, in exchange for salt, cacao, shark teeth, serpentine, feathers etc
Their trait as skillful traders helped to boost their economy and diversify their culture to different civilizations, and are referred to as parent culture for later civilizations that sprung up.
