Answer: B - The best type of graphic organizer to help Mr. Crofton’s students identify the chain of events within a butterfly’s life is the cycle map. This approach is best because the life of a butterfly is cyclical, ending at the stage where it began. Sequence maps can be used to put details into chronological order. Family trees are an example of a sequence map. Continuums are items like rating scales. Cause-and-effect maps are used to make connections on the interdependence of events.