What s that noise ? It sound like an aeroplane, said Ravi.

• A. Ravi asked what the noise was, adding that it sounded like an aeroplane.
• B. Ravi demanded to know what the noise was, saying that it sounded like an aeroplane.
• C. Ravi asked what the noise could have been saying that it sounded like an aeroplane.
• D. Ravi wondered about the noise thinking that it sounded like an aeroplane.