Engaging with formal religious doctrines, values, traditions, and members is an example of what?

The correct answer is B. Religiosity.

Religiosity refers to the degree of one’s religious beliefs, practices, and involvement in religious traditions. Engaging with formal religious doctrines, values, and members highlights a person’s active participation and commitment to their faith, which is at the core of religiosity. If you have any further questions or need more assistance, feel free to ask!