Multi-choice problem: Choose from the options at the end, and answer how do you do this: To cut perfect slices of cheesecake.

Available choices: *Grab a piece of unflavored dental floss. Position it above the cake; then, holding it taut, press down through the cake with a gentle sawing motion. You'll get a clean slice every time.; *Grab a piece of unflavored dental floss. Position it above the cake; then, holding it taut, press down through the cake with a gentle sawing motion. You'll get a dirty slice every time.;
Grab a piece of unflavored dental floss. Position it above the cake; then, holding it taut, press down through the cake with a gentle sawing motion. You'll get a clean slice every time.