please check my answer thank you very much for your help
The Premack princciple suggets that
A. reinforcement is highly frustrating the dog
B. A more desirable activity can serve as a reinforcer for aless desirable activity
C reinforcement isn't dependent on the dog motivational state
D. dogs percevive reinforcing events as rewards
I know that it menas of any two responses, the one that's more likely to occur can be used to reinforce the respone that's less liley to occur
So I think the answer is B