Final answer:
The scenario described represents a Fixed ratio.
Step-by-step explanation:
The scenario described in the question represents a C) Fixed ratio.
In this scenario, the amount of money Erma earns from selling hotdogs is fixed and consistent. For every hotdog she sells, she puts 25 cents in her pocket and 75 cents in her boss's change purse. This fixed ratio of 25 cents to her pocket and 75 cents to her boss's change purse remains the same every time she sells a hotdog, regardless of the total amount of money earned or the number of hotdogs sold.