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:

The long or short of it is that I do not want to deal with that new firm.

A The long and short of it

B The long and short for it

C The long or short for it

D The shot and long for it

E No correction required

ANS:A - The long and short of it

No answer description is available.