In their 1961 paper on instinctive drift, the Brelands determined that three assumptions most Skinnerian behaviorists believed in were not actually true. Which is one of the assumptions that wasnt...

In their 1961 paper on instinctive drift, the Brelands determined that three assumptions most Skinnerian behaviorists believed in were not actually true. Which is one of the assumptions that wasnt true?

 All responses are equally able to be conditioned to any stimulus.

The animal comes to the laboratory a tabula rasa, or "blank slate," and can be taught anything with the right conditioning.

 Differences between species of animals are insignificant.

All of these were not true.

or All of these were true.