I need please here are the questions A. the difference between the mean cost to treat dogs at No ruff stuff animal Hospital and the mean cost to treat cats at No ruff stuff animal hospital is about 10 times the Mad. This is a small difference B. The difference between the mean cost to treat dogs at No Ruff stuff animal Hospital and the mean cost to treat cats at no Ruff stuff animal Hospital is about 10 times the mad. This is a large difference C. The difference between the mean cost to treat dogs at no ruff stuff animal Hospital and the mean cost to treat cats at no ruff stuff animal hospital is about 20 times the mad. This is a small difference D. The difference between the mean cost to treat dogs at no ruff stuff animal hospital and the mean to treat cats at no ruff stuff animal hospital is about 5 times the mad. This is a large difference