According to the Definition of Intimacy Provided in the Text

According to the definition of intimacy provided in the text, which of the following examples reveals intimacy in relationships?

A) John feels a rush of warmth and love when he looks at Phillip.
B) Nancy tells Allison a secret, and Allison promises not to reveal it to anyone.
C) Fred and Jay talk with each other about their past experiences.
D) all of the above.