[Solved] What characteristic of the 10-m Keck telescopes makes them fundamentally different from older telescopes, such as the one on Mount Palomar? A) They are located in Earth's orbit, away from all the distortions of Earth's atmosphere. B) They are actually four closely spaced telescopes that can be operated together as if they were a single telescope. C) The primary mirrors are large, very thin pieces of glass that can be deformed rapidly to compensate for seeing. D) The primary mirror is made up of 36 separate mirror segments. Sexual Activity: Behaviors involving the expression of sexuality between individuals, including but not limited to intercourse. Sexual Sadist: A sexual sadist is an individual who derives pleasure or sexual gratification from inflicting pain, suffering, or humiliation on others. Psychodynamic: Pertains to a psychological approach or theory that emphasizes unconscious psychological processes and their influence on human behavior. Voyeurism: A disorder characterized by gaining sexual pleasure from observing unsuspecting individuals who are naked, in the process of disrobing, or engaging in sexual activities.