Answer :
Studies cited in the text that were looking at the possible hormonal explanations for ga_y, les_bian, and bisexual orientations focused on all of the following except spinal column length.
Option D is correct.
What Is Sexual Orientation?
Sexual orientation is described to as a person's pattern of emotional, romantic, and sexual attraction to people of a particular gender (male or female).
Sexuality plays an important part of who we are as humans. Aside from the ability to reproduce, sexuality also defines how we see ourselves and how we physically relate to others.
Sexual orientation is usually divided into these categories:
Heterosexual: Attracted to people of the opposite gender
Bisexual: Attracted to people of either gender
Homosexual: Attracted to people of one's own gender
Pansexual: Attracted to people of any gender identity
Asexual: Not sexually attracted to other people.
From the study cited in the text, bisexual orientations focused on all of the following
a. index/ring finger ratio
b. the older brother effect
c. exposure to DES
Learn more about sexual orientation at: https://brainly.com/question/3908525
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