Which of the following individuals has the highest likelihood of a homosexual orientation, based on prenatal factors for brain organization?

Question

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According to research on prenatal factors for brain organization, having a lot of older brothers increases the likelihood of a homosexual orientation in males. This is known as the fraternal birth order effect, and it is believed to be related to the mother's immune response to male fetuses, which may affect brain development. The other factors listed (being an oldest or only child, having older sisters, having a lot of younger brothers) do not have a significant association with homosexual orientation.

Which of the Following Individuals Has the Highest Likelihood of a Homosexual