You observe variation in the auditory signal that males use to attract females. Which of the following would be true if the signal is an accurate indicator of male quality?

A) The highest-quality males have the most common form of the signal.
B) The highest-quality males have the most extreme form of the signal.
C) Male quality is unrelated to signal variation.
D) Only the highest-quality females prefer the highest-quality males.
E) Females will use multiple signals to identify the highest-quality males.