You have a dataset of blood pressure and chocolate consumption for a sample of dogs and cats. Which model allows you to determine whether the association between chocolate consumption and blood pressure is different for dogs and for cats?
A. bloodpressure_hat= B0_hat + B1_hatcat + B2_hatchocolate + B3_hatdogchocolate
B. bloodpressure_hat= B0_hat + B1_hatdog + B2_hatchocolate + B3_hatdogchocolate
C. Both A and B
D. Neither A and B
Answer: C. Both A and B