Prompt: The swim event begins at the blow of a whistle. At the sound, the swimmers 
Completion A: think the whistle is calling them home and they fly into space. 
Completion B: begin their laps as fast as they can. 
Completion C: scream at the top of their lungs to drown out the sound of the whistle. 
Completion D: decide to invite the whistle and the other swimmers to a tea party.
Completion B