Humans, whales and bats have one thing in common: they're all mammals. This means that they have a common ancestor that is not shared by for example fish: in this way, they can be said to have a common ancestor, the first mammal.
However, in the end, all life on earth can be trade to a common ancestor- so to some degree this can also be said about all animals.
Farther. Further is metaphorical, using "farther" in this case because <span>“farther” has the word “far” in it, and “far” obviously relates to physical distance. Therefore the town is fifteen minutes farther up the road </span>
I think the answer would be c
