Select the most appropriate one-word substitution for the given group of words. 

Accepting and closely following the traditional beliefs and customs of a religion.

Orthodox

The most appropriate one-word substitution for the given group of words "Accepting and closely following the traditional beliefs and customs of a religion" is "Orthodox."

Explanation of the options:

☀ Detour: Detour refers to a deviation or alternate route taken to avoid an obstacle or reach a destination, and it is unrelated to religious beliefs and customs.

☀ Orthodox: This word accurately describes the act of accepting and closely following the traditional beliefs and customs of a religion. It refers to adherence to established or traditional principles, especially in religious matters.

☀ Biopsy: Biopsy is a medical procedure involving the removal and examination of tissue for diagnostic purposes, and it does not pertain to religious beliefs and customs.

☀ Infallible: Infallible means incapable of making mistakes or being wrong, and it does not specifically capture the idea of following traditional beliefs and customs of a religion.