I would say D they appealed to Christians...
When Congress tried to regulate the possession of guns in 1995, the Supreme Court concluded that Congress had overreached the legitimate bounds of the commerce power.
The Supreme Court grasp the Gun-Free School Zones Act of 1990, which prohibit the possession of handguns. The act was amended after the Lopez decision.
Your answer would be B). The Olmec's invented a popular ball game that later cultures played.
A sister culture is a culture that gets traditions from civilizations that are around them and then pass on their culture to succeeding civilizations for generations to come. The Olmec's invented a game, and it was later on played by other cultures, and that perfectly fits the description of what a "sister culture" is.