What is most closely a central or main idea in the following passage (paragraph 13)?

I walked back to our station wagon and got in the backseat, and my dad drove away. My parents didn't say one word. Not a single word. The
silence cut into me like a knife to the heart. They were ashamed of me and for me. My dad had been captain of the football team. My mom had
been head of her drill team. I was nothing. My parents, especially my father, valued being cool and fitting in above all else. I was not cool. I didn't
fit in.
A Both of the author's parents valued sports very highly.
B. The author's parents express their disappointment through silence.
C. The author's failure to make the team made her an outcast in her family
D. What the author's parents thought is not important to her