Which of the phrases (A), (B), (C) and (D) given below each sentence should replace the phrase printed in bold in the sentence to make it grammatically correct? If the sentence is correct as it is given and no correction is required, mark (E) as the answer.
Their all hard work had been of no use.

Options

A. All their
B. Of all their
C. Their all of
D. Their much

Answer

A