Gülçin and I are best friends. We are at the same school and we spend time together a lot. Sometimes she stays over, and we have slumber parties. We share everything. She is the only friend who I can trust. I always depend on her. We sometimes argue but most of the time, we get on well. The only thing I don't like about her is that she is a bit ----. Which of the following completes the sentence?
A) cool
B) trustworthy
C) reliable
D) laid-back