Answer:
B) Tammi has a comparative advantage in both tasks.
Step-by-step explanation:
Based on the information provided in the question, Horace does not have the total advantage in the grooming of dogs as well as the bathing of cats due to the opportunity cost. On the other hand, Tammi has the total advantage of the bathing of cats as well as the grooming of dogs due to the opportunity cost. Therefore, the correct option is option B.