Sentence Correction - Verbal and Reasoning

Directions to SolveWhich of phrases given below each sentence should replace the phrase printed inboldtype to make the grammatically correct? If the sentence is correct as it is, mark 'E' as the answer.
Q1:

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

ANS:B - speaks for itself

No answer description is available.