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.

I need not offer any explanation regarding this incident - my behaviour is speaking itself.

A.

will speak to itself

B.

speaks for itself

C.

has been speaking

D.

speaks about itself

E.

No correction required

Correct answer is B

No explanation has been provided for this answer.