It is the people`s way of life
a. Immersion
b. mannerism
c. culture

C: culture

Explanation: what someone believes in and lives their life based on, that is why it is a people’s way of life.

Hope this helps!

Bob: coke is baby pandas.jim: what? how do you figure that coke is baby pandas? bob: because this book says so.jim: how do we know the book is correct? bob: because it says that coke is baby pandas.jim: how does that prove the book's accuracy? bob: because it's statement involving coke and baby pandas is correct, therefore it is accurate.jim: how do we know that it's correct? bob: because we have concluded that the book is accurate, and therefore the statement is correct.therefore, coke is baby pandas.