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.

One of the most significant phenomenons of our time has been the development of cinema.

A.

phenomenon

B.

phenomena

C.

phenomenonna

D.

phenomenonns

E.

No correction required

Correct answer is B

No explanation has been provided for this answer.