Directions:
Which of phrases given below each sentence should replace the phrase printed in bold type to make the grammatically correct? If the sentence is correct as it is, select 'No correction required' as the answer.

Question:
Ramesh is as tall if not, taller than Mahesh.

Option A):
as if not
Option B):
No correction required
Option C):
not as tall but
Option D):
as tall as, if not
Option E):
not so tall but as

Correct Answer is Option D):
as tall as, if not