Praxis II Citizenship

Answer: C -An atoll is a ring-shaped body surrounding a lagoon. It may be composed of a coral reef, an island, or a series of islets. (Note: While “coral reef” and “atoll” were both technically correct, “atoll” was more correct and, therefore, the better answer. Much like “all thumbs are fingers but not all fingers are thumbs,” all ring-shaped bodies of coral surrounding lagoons are atolls, but not all atolls are made of coral. The Praxis will periodically have questions like this, where multiple choices are correct but one choice is somehow more correct than the other.)