Which of the phrases given below the sentence should replace the phrase printed in bold type to make it grammatically correct? If the sentence is correct as it is, mark 'E' as the answer.

They have a scheme of rewarding the best of the performers every year.

A.

a best performer

B.

the best among the performer

C.

a best among performer

D.

the best of the performer

E.

No correction required

Correct answer is E

No explanation has been provided for this answer.