Which of the Following Theoretical Models Outlines the Complex Interactions

Which of the following theoretical models outlines the complex interactions for sexual orientation?

A) Environmental influences are likely the key factor in predicting outcome.
B) Causal contributions to sexual orientation are probably one-third familial, one-third biological, and one-third cultural.
C) Genetic contributions determine the outcome.
D) No single factor, biological or psychological, can predict the outcome.