You are mowing a lawn along a sidewalk, and a person is walking by close to your mower. Which of the following options would be the best response? a. Pull away from sidewalk, shut blades off and power down the revolutions-per-minute (RPM) b. Power down the revolutions-per-minute (RPM) and wait for the person to pass c. Power down the revolutions-per-minute (RPM) and verbally warn the person to keep at a safe distance d. Leave the mower and blades running and power down the revolutions-per-minute (RPM)