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.
The easiest of the thing to do is to ask the address to the postman.
of the things to do
among the things did
of the thing to be done
of all the things done
No correction required
Correct answer is A
No explanation has been provided for this answer.