A: CBB = Captive Born and Bred, meaning both parents were born and raised in captivity, as was their offspring. 100% of honest breeders will have photo or video evidence to prove this claim.
CB = Captive Born, meaning the mother was collected from the wild, already pregnant and gave birth in captivity. The babies still stand a 50/50 chance of being born sick or showing signs of parasites like any bluey captured in the wild and shipped hastily overseas.
WC = Wild Caught. This can mean caught directly from the wild or raised in outdoor farms in Indonesia. Any Wild Caught stands the same chance of coming in sick and having a feral personality its whole life in captivity. It’s not always the case, but saving a few bucks will probably not be worth it in the long run.