Dylan Is on a Roller-Coaster That Has Just Reached the Top

Dylan is on a roller-coaster that has just reached the top of the first climb and is starting to drop. Based on the James-Lange theory of emotion, Dylan should report,

A) "My racing heart must mean I'm terrified because everyone else is screaming."
B) "I feel terrified because my heart is racing."
C) "My heart is racing because I am terrified."
D) "The sight of the drop makes my heart race and it makes me feel terrified."