The value, V(m), of a comic book m months after publication has an average rate of change of –0.04 between m = 36 and m = 60. Which statement must be true? a. The value of the comic book decreased by a total of $0.04 between m = 36 and m = 60.
b. The value of the comic book increased by a total of $0.04 between m = 36 and m = 60.
c. The value of the comic book decreased by an average of $0.04 each month between m = 36 and m = 60.
d. The value of the comic book increased by an average of $0.04 each month between m = 36 and m = 60.