Answer: The answer is D
Explanation:
It is A and B combined. It sounds more Scientific and like there is research to back up their claim
A. benefits should be correct
Dogs can be very crazy sometimes (like my dog) my family made a mistake to training my dog when he was a puppy but when he was older (even thought he wasn't a puppy any more) we taught him not to bite or lick ur face(which I loved but my mom said it was bad). My dog can still be crazy but at least he doesn't bite anymore. Something u should know train ur dog when he or she is a PUPPY it's better.
Srry this probably didn't help u at all:(
Answer:
Its D. Messenger system.
Explanation:
Just took the test and its correct!