Final answer:
Religious beliefs and behaviors are rooted in dogma, which are authoritative principles or beliefs held by a religious faith.
Step-by-step explanation:
A key feature of religious beliefs and behavior is that they are rooted in: D) dogma. Dogma refers to a set of principles or beliefs that are accepted by members of a faith as authoritative and not subject to alteration. Religion as a social institution includes an organized and integrated set of beliefs, behaviors, and norms centered on basic social needs and values. It is often deeply intertwined with social action and behaviors. However, dogma itself is the most direct answer that corresponds to the key features of religious beliefs and practices.