Instructions Read the statement or passage and then choose the best answer to the question. Answer the question on the basis of what is stated or implied in the statement or passage. Passage Mammoth Cave in Kentucky is the world's most extensive cave system. It was first advertised in 1816, making it the second oldest tourist attraction in the United States Stephen Bishop, an African American slave and a tour guide, was one of the first people to make extensive maps of the cave, and he named many of the cave's features, such as The River Styx and The Giant Dome. Question The author's main purpose is to provide the biography of a famous person O practical information for travelers historical facts about a place O technical details regarding cave exploration