What happened after canada advertised free land in european newspapers in the late 1800s and early 1900s? a. immigration decreased. b. immigration increased. c. people left canada for europe. d. canadians moved from the farms to the cities.

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.