Which of the following is a way you could begin an essay that's about the medical uses of iodine?
a. the winter olympics of 1980 took place in the beautiful area of lake placid, new york. lake placid is nestled in the adirondack mountains.
b. silver iodide is used in photography. photography is a widespread form of art, and it has become more popular than painting.
c. 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.
d. although iodine is useful for medical treatments, so are other elements like oxygen, radium, and barium.