Domesticated animals, such as dogs, have come into existence by the breeding of only the individuals of a wild species that are sufficiently tame. For example, if when breeding wolves one breeds only those that display tameness when young, then after a number of generations the offspring will be a species of dog. Ttherefore, all animals can, in principle, be bred for domesticity. Which one of the following, if true, most weakens the argument?
A: In some animal species, no members ever display tameness.
B: Domesticated animals cannot be turned into wild species by breeding only those animals that display some wild characteristics.
C: In some animal species, wild members mate more frequently than tame members.
D: In some domesticated animal species, some members are much more tame than other members.
Choose A, B, C or D as your solution.
A