If all of the philosophical questions in Chapter 1 share a common thread, it is that answering them

A) requires you to articulate what you believe about yourself and the world.
B) requires that you articulate a clear reason for believing in God.
C) r equires you to reject everything you had believed about yourself and the world.
D) requires you to articulate a theory of the mind and body.

All of the philosophical questions in Chapter 1 require the individual to think deeply about their beliefs regarding themselves and the world around them, and to articulate those beliefs in a coherent and reasoned manner. None of the questions explicitly pertain to a theory of the mind and body or a clear reason for believing in God, and rejecting everything one previously believed is not a necessary component of answering these questions.