Refer to the figure.
These findings most directly support the

A) by-product hypothesis, in which the pseudopenis developed as a by-product of some other adaptive change that had positive fitness effects.
B) extra-androgen hypothesis, which states that the female pseudopenis develops as a result of the exposure in utero to elevated androgens.
C) submission hypothesis, which states that the pseudopenis signals subordination or willingness to bond with other individuals.
D) social-bonding hypothesis, which states that the pseudopenis promotes the formation of cooperative coalitions.