For some organisms, bioluminescence can attract a mate. Fireflies flicker to attract mates as well as prey, and males and females have different flashing patterns to distinguish them. Some fireflies can even synchronize their flashes, which is known as simultaneous bioluminescence. This usually occurs in groups of male fireflies, called leks, that flash their lights at the same time to attract females. Which statement best describes the likely purpose of paragraph 9?
• A. to elaborate on how certain insect species produce bioluminescence
• B. to describe how some organisms use bioluminescence to frighten predators
• C. to explain how bioluminescent insects differ from bioluminescent ocean organisms
• D. to provide an example of an organism that uses bioluminescence to attract a mate