After 67 people became ill from consuming food at a company picnic, investigators determined that the tossed green salad, the egg salad, and the chicken slices were all contaminated with campylobacter. invent a scenario that would explain how all three became contaminated. enter your answer in accordance to the question statement

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