Noland bought a fancy new smart phone. It was a different brand of phone than his old phone, so he spent quite a few frustrating hours learning to use the new one. The problem was that he kept trying to tap icons on the new phone in the places they had been on his old phone. Noland's problem was most likely due to .

Which of the following  bestillustrates a negative reinforcer?               a.  copland gives up candy to stave off chronic acid indigestion.    b.  nancy learns that she prefers chocolate over vanilla.    c.  carmine changes his major to english lit after failing a math exam.    d.  on a hot day, lindberg always drinks lemonade.