[Solved] Which is heaviest? A) water molecule B) hydrogen atom C) oxygen atom D) proton E) electron Sexual Orientation: Sexual orientation is a pattern of emotional, romantic, or sexual attraction to the opposite sex, same sex, both sexes, or neither, which forms part of a person's identity. Erotic Plasticity: The degree to which an individual's sex drive can be changed by outside forces such as social, environmental, or situational factors. Homosexual Desires: Sexual attraction or desire between individuals of the same sex. Sexual Orientations: The inherent or enduring pattern of emotional, romantic, or sexual attraction to people of the opposite sex, same sex, both sexes, or more than one gender.