D, Worf is flying  all over the place in the background. Immediately following the star  drives destruction, the shock wave sends Worf flying to his left.  He crawls back to his station and then falls to his left again.  Immediately following, as Riker is screaming to Deana for a report,  you can see Worfs hands holding on to the railing right behind  Riker. The next instant he is to the right of his station (our left,  bringing himself up) and in the very next scene he is seated at his  station.