Final answer:
The term for a religion where behavior and morals are crucial is 'Ethical'.
Step-by-step explanation:
The term for a religion in which behavior and morals are considered important is B) Ethical. In these religious systems, the conduct of individuals is seen to have an impact on their spiritual welfare or standing with the deity or deities of that religion. This contrasts with polytheistic religions where appeasement of the gods through rituals and sacrifices was typically more significant than ethical behavior.
In ancient Egyptian religion, as in the case of the attempted religious reforms of Akhenaten, we see a shift from the traditional polytheistic framework to a quasi-monotheistic system where the pharaoh acts as an intermediary between the people and a single deity. Although motivated by various reasons, these shifts often highlight the evolving perspective on ethics and moral conduct within religious expression.
Religions like Judaism, Christianity, and Islam, which emerged later, firmly establish ethical codes as a cornerstone of their teachings, reinforcing the idea that moral conduct is integral to religious life and often tied to the concept of an afterlife where individuals are rewarded or punished based on their actions.