Four clownfish individuals of the species Premnas biaculeatus live in a single anemone. Albert measures 15 cm, Barry is 12 cm, Cindy is 8 cm, and Diane is 6 cm. Based on what you know about clownfish biology, which statement is most likely true?
A) Albert is the only female.
B) Barry is the only female.
C) Diane is the only female.
D) Cindy and Diane are both females.