The correct option is
C order but in different families
Otters are carnivores, which means they eat meat. The elusive otter is one of the top predators, feeding mainly on fish, waterbirds, amphibians and crustaceans. It's family is Mustelidae.
Leopards are carnivores and eat monkeys, baboons, rodents, snakes, amphibians, large birds, fish, antelope, cheetah cubs, warthogs, and porcupines. It belongs to the family Felidae.
Both the families, Mustelidae and Felidae are placed in the same order, Carnivora. Hence, they are in same order but in different families.