Shaniq Has Seen Two Movies This Week and Two Baseball

Shaniq has seen two movies this week and two baseball games. Her marginal utility of one more movie is 20 and her marginal utility of one more baseball game is 30. Shaniq will go to a baseball game tonight, rather than to another movie

A) no matter how much more the baseball game costs compared to the movie.
B) if the baseball game costs $10.00 and the movie costs $7.00.
C) if the baseball game costs $10.00 and the movie costs $5.00.
D) Both answers B and C are correct.