[Solved] Martin and Matthew are identical twins. Matthew has obsessive-compulsive disorder, but Martin does not. In a biological research study, who would be the proband? A) Martin B) Matthew C) Martin and Matthew's mother D) Martin and Matthew's father Voyeuristic: Relating to or characterized by an interest in observing unsuspecting individuals, typically for sexual gratification. Activities: Tasks or actions that individuals engage in, often for leisure or to accomplish a specific goal. Autoerotic Asphyxia: involves intentionally restricting one's own breathing during masturbation to enhance sexual arousal and orgasm. Sexual Masochism: A paraphilia where an individual derives sexual pleasure from undergoing pain or humiliation.