I know for a fact, 3 and 7
Answer:She died on Feb. 21, 1999, in Chapel Hill, N.C. ( I think you would need a bigger sentence) I think she was a terrific scientist. ( You can't just think. If your not sure then just don't add it or research it more.) Elion also discovered new ways to test drugs. ( Needs longer sentences add comas or something to make it longer!)
Answer:
D
Explanation:
D seems to be the most clear, and the most interesting out of the 4 you were given.
