What are five goals of u. s. foreign policy?

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.

What is the best way to achevieve long-term financial goals

Imagine that the value of the us dollar rises compared to the canadian dollar for many months. what effect is this likely to have on the amount of goods the us imports from canada?