Rewrite the sentence below using the word 'crossing'. As you cross the bridge, you can hear the vibrations. (a) You can hear the vibrations, in crossing the bridge. b) While crossing the bridge, you can hear the vibrations. Wellings (c) You can hear the vibrations crossing the bridge. (d) During crossing the bridge you can hear the vibrations.

• A. Only a is correct
• B. Only b is correct
• C. Only c is correct
• D. Only d is correction