Which of the following supporting details would best support an expository essay section titled "An Overview of Hiking in State Parks"? A. America's first national park was Yellowstone, which also happens to boast some of the most spectacular hiking you'll ever find. B. Oregon's Oswald West State Park offers hikers lush forest and spectacular views of the Pacific Ocean. C. There are almost 6,500 state parks across the United States, which all together offer over 40,000 miles of trails. D. State parks are superior to national parks because they are usually less trafficked and don't charge as much for admission.​