Trying to Understand the Concept and the Examples of Ultimate

Trying to understand the concept and the examples of Ultimate Being

A) is intended in our text to help us all become more spiritual.
B) allows us to understand God and Brahman fully.
C) is useful to help us reach thoughtful conclusions about practices that are or are not "religious."
D) is really of no use, because everyone has his or her own concept of "God."