If you want to train a system consider these two factors? A- Intensity (work) & Time to recover (rest)
B- Intensity (work) & Volume (how much)
C- Volume (how much) & Time to recover (rest)

to provide benchmarks

who knows what the anwseer is

answer

ben’s food poisoning was caused by cross-contamination

explanation

cross-contamination in food occurs when harmful bacteria is transferred to food from other foods, utensils or cutting boards. it happens often when handling raw meat , sea foods and poultry. in this case, because ben did not wash hands before and after handing the poultry, chances that bacteria transfer   from the poultry to the vegetable are high.