Elephants are not widely domesticated probably because they do not conform to which of the following specifications?

A easy to feed

B easy to breed

C calm and relatively friendly

D able to conform to a specific way of life

The correct answer is: B) easy to breed.

In order to be domesticated, animals must have been selectively bred by humans for at least 12 generations. Some of the elephants were successfully bred, but they were not bred selectively for the traits desirable by humans. It is because selective breeding of elephants is impractical due to their long reproductive cycle.