The Experiment Mentioned in the Textbook That Addressed the Question

The experiment mentioned in the textbook that addressed the question of how we recognize relatives involved:

A) the ability of fruit flies to recognize, and avoid mating with, those individuals whose wing patterns matched their own
B) the amount of time crickets spent in a territory
C) the size of the area birds established and defended as their mating territory
D) the tendency of lions to form gender-specific groups (coalitions and prides) that are primarily restricted to relatives