[Solved] Which of the following is thought to be a characteristic of a first-born child? A) More self-disciplined than later-born children B) Less easily influenced by authority than younger siblings C) Vary more from parents' values D) Do not readily seek approval Disinhibitor: An agent or factor that reduces inhibition, often resulting in impulsive or more free behavior. Barbiturates: A class of drugs that act as central nervous system depressants, historically used for anxiety, insomnia, and seizure disorders. Nervous System: The complex network of nerve cells and fibers that transmits nerve impulses between parts of the body, coordinating bodily functions and activities. Erotic Movie: A genre of film that focuses on sexual themes and content, typically intended to arouse the audience.