Final answer:
Polytheism is the belief system that supports the idea of many spirit gods or goddesses, unlike Modernism, Postmodernism, or Protestantism.
Step-by-step explanation:
The option that supports the idea of many spirit gods or goddesses is Polytheism. Polytheistic religions revolve around the worship of multiple deities, each with different responsibilities, personalities, and capabilities.
Religions such as those of Ancient Greece and Rome are well-known examples of polytheistic systems. In contrast, Modernism is a cultural movement that represents a substantial break from traditions including classical religious belief systems, Postmodernism refers to a philosophical movement that arose as a critical reaction to modernism, often skeptical of grand theories and ideologies,
and Protestantism is a branch of Christianity that rejects the authority of the Pope and features a wide belief in the justification by faith alone. None of these latter options are characterized by a belief in many gods or gods.
Polytheism is a polytheistic religion that believes in multiple gods or goddesses, each with specific roles and characteristics. Ancient Greek and Roman religions are well-known examples of polytheistic religions.
Other belief systems, such as pantheism and panentheism, may also have multiple deities or a different understanding of the divine. However, it's important to note that these ideas may differ from the monotheistic traditions of Western religions like Judaism, Christianity, and Islam.