For the past two decades, Eton Coaching Institute has been the market

For the past two decades, Eton Coaching Institute has been the market leader in preparing students for the entrance test to medical schools in the country. While several new players have set up shop in the last few years, and have shown good results, it remains without doubts that if a student wishes to ace the medical school entrance test, his best chances are with Eton Coaching Institute.

The statements above, if true, best support which of the following assertions?

(A) There is something unique about the books provided by the Eton Coaching Institute that makes its students perform very well in the medical school entrance test.
(B) If a student does not join the Eton Coaching Institute, he will most likely fail to clear the medical school entrance test.
(C) The teachers at Eton Coaching Institute are probably better than those at other institutes.
(D) A student could clear the medical school entrance test, even if he hasnt prepared with the Eton Coaching Institute.
(E) If a student has prepared with the Eton Coaching Institute, he will clear the medical school entrance test.