Read the scenarios below. Scenario 1: John uses the rake to erase his footprints in the sand trap. Scenario 2: Katie wipes off the handrails of the treadmill after her workout. Which statement is true about both scenarios?a) Both scenarios demonstrate proper body alignment. b) Both scenarios demonstrate proper mechanical form. c) Both scenarios demonstrate proper etiquette. d) Both scenarios demonstrate proper safety procedures.

A. hannah wants to improve her cardiorespiratory fitness levels, so she begins to alternate running on a flat track with running up stadium stairs. this principle is known as a type b tedium c time d frequency 2. charlie is easily winded during soccer practice and wants to improve his cardiorespiratory fitness. which activity would be best for him to choose? a lifting weights b walking from one class to another c running in a 5k race d riding a bike at a leisurely pace 3. felicia just began running this past month, but since she continues to run the exact same route and exact same distance every day, she is growing bored with her runs. this principle is known as a tedium b progression c specificity d reversibility