A Researcher Had Young or Middle Age Participants Watch a PG-13

Multiple Choice

A researcher had young or middle age participants watch a PG-13 or an R-rated film.After viewing the film,the participants rated the amount of violence in the films-the higher the assigned rating,the more violent the film.The mean results in the four conditions were:
Which of the following statements is least likely to be true?

A) An interaction between age and type of movie exists.
B) A simple main effect of participant age exists when the movie is rated R.
C) An interaction between age and type of movie exist for PG-13 movies but not for R-rated movies.
D) A simple main effect of participant age does not exist when the movie is rated PG-13.