Given U = {cat, dog, fish, goat, horse, llama, sloth}, A = {cat, dog, fish}, and B = {cat, fish, horse, sloth}. If (A \cap B)' = {dog, goat, horse, llama, sloth}, determine A' \cup B'. {dog, goat, horse, llama, sloth} {goat, horse, llama, sloth} {dog, goat, llama} {cat, fish}