Read this draft of the introductory paragraph for a narrative essay. Which sentence is appropriate to place at the beginning of this paragraph? A) People in North America have tamed and ridden horses for thousands of years. B) I think that every person should learn how to ride horses by the time that they are adults. C) Taking horseback riding classes is a good idea for people who want excitement in their lives. D) Learning to ride horses is one of the most challenging, yet thrilling, experiences of my life.