I have few CR Questions for which i do not have any OA's. I

I have few CR Questions for which i do not have any OA's. I will put them on the forum for the discussion. Please comment and respond on the Oa's.


Car owners who use high quality synthetic motor oil get better engine performance from their cars than do car owners who use lower quality motor oil. Julius has consistently used high quality synthetic motor oil in his six-year-old compact car. Therefore, he has a lower chance of getting into a major automobile accident than he would have if he had used an inferior type of motor oil.
Which of the following, if true, most strengthens the conclusion drawn above?
A Every year a small percentage of major automobile accidents result from stalled engines, the occurrence of which is a sign of poor engine performance.
B The most common cause of major automobile accidents is driver error.
C Julius believes that an essential component of being a responsible driver is to maintain his automobile in the best possible condition.
D It has been proven that cars which have been lubricated with high quality synthetic motor oil have, on average, a slightly higher top speed than do cars of the same model but which have received lower quality motor oils.
E Although Julius's vehicle has never been involved in a major automobile accident, it has been involved in two minor "fender benders"; in neither incident was Julius considered at fault.


I have marked