[Solved] Which hormone is associated with the emotional attachment associated with romantic relationships? A) testosterone B) estrogen C) oxytocin D) prolactin Erotic Plasticity: The degree to which one's sex drive or erotic preferences may be shaped by environmental, social, or situational factors. Refractory Period: A time period following an action or physiological event during which a second action or event cannot be initiated. Erotic Plasticity: The degree to which an individual's sex drive can be changed by societal or environmental factors. Sexual Orientation: An inherent or immutable enduring emotional, romantic, or sexual attraction to other people.