Which of the following is a way you could begin an essay that's about the medical uses of iodine? A. Last summer, a splinter in my brother's leg became infected, which led to blood poisoning. He could have prevented the problem with a few drops of iodine. B. Although iodine is useful for medical treatments, so are other elements like oxygen, radium, and barium. C. Silver iodide is used in photography. Photography is a widespread form of art, and it has become more popular than ...