Respuesta :

The britons put deep adoration on many natural object such  as trees and stones.

I would say that the answer is : C. Pious

They definitely not secular. Inappropriate and sinful are way too subjective terms depend on which point of view you choose to see their behavior

hope this helps
The new behavior of recently converted Britons would be categorized as pious.  

Pious means devoutly religious.  

The correct answer between all the choices given is the third choice or letter C. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.