The group discusses CQ 7-5: What happens when two objects are charged by rubbing or peeling? In the version of the materials this group had there were actually four choices. Choice C on the current version was choice D on the previous version. [Choice C on the previous version was: "Both objects have both types of charge but each type is in a different location on the object.' That choice doesn't appear on the current version.] Different students in the group support either choice B (one object has only one type of charge and the other object has only the other type of charge) or choice D (which is now choice C). Also, these students had seen a movie where an acrylic sheet and a Styrofoam plate were charged oppositely by rubbing them together.