Conduct Books Appeared Instrumental in Changing People's Sense of Self

Conduct books appeared instrumental in changing people's sense of self because

A) they clearly outlined the types of behaviors that were deemed appropriate and inappropriate, thereby creating a sense of morality and accomplishment in people.
B) as a technology of the Protestant religion, they created an emphasis on self-control and increased literacy rates, which allowed for greater introspection.
C) as a technology of the Catholic religion, they provided a guide for raising a family, which created a feeling of cohesiveness and productiveness in parents.
D) of none of the above