The correct option is B Dog
Dogs are the earliest animals made as pets. The first potential evidence of dog domestication dates back to 30,000 B.C., in the form of a wolflike creature found in a cave in Belgium. Other evidence suggests dogs weren't domesticated until thousands of years later. Before they were pets, dogs helped human hunt and cats helped guard grain supplies by keeping rats and mice away. Eventually, people started to treat these animals more like pets. At present human-canine bonding is the mutually beneficial and dynamic relationship between human and dogs that is studied by psychologists, anthropologists and ethologists.