9. some archaeologists have debated whether the olmec were a "mother culture" of mesoamerican cultures or a "sister culture." which of the following scenarios would support the hypothesis that the olmec were not a "mother culture" but rather a "sister culture"? (5 points)
a)the olmecs' use of some ritual items were adopted by other mesoamerican cultures.
b) the olmecs invented a popular ball game that later cultures played.
c)the olmecs shared tool-making techniques with a contemporary culture. d) the olmecs' celebration of some gods was adopted by later cultures.