Read the sentence below to find out whether there is any grammatical error in it. The error, if any, will be in one part of the sentence. Choose the option with that part as your answer. If there is no error, choose 'D' as your answer. (Ignore the errors of punctuation, if any).

Since India has gained Independence 49 years ago, much progress has been made in almost every field.

A.

Since India has gained Independence

B.

49 years ago,

C.

much progress has been made in almost every field.

D.

No error.

Correct answer is A

Since India gained independence