If conducting research for a paper on restricting cell phone usage in automobiles, which source would be most effective to use in your argument? a) a recent court case b) a personal interview c) a nonscientific survey or "straw poll" d) a fifteen-year-old scholarly journal submit

If conducting research for a paper on restricting cell phone usage, the most effective source in the argument will be:
(a) A RECENT COURT CASE.

(b), (c) and (d) do not come under an effective argument case in the above question. A recent court case can be an effective argument because use of cell phones are banned or not allowed while driving and there can be a case where cell phone was used during driving an automobile.