In below compare the bold part of each sentence with expressions A, B, C, D and E. choose the correct expression which is an improvement upon the bold part.Had I realised how close I was to the edge of the valley, I would not have carried the bags there.

• A. Had I had realised
• B. When I realised
• C. Had I been realised
• D. No correction required
• E. If I would have realised

Answer: (D)