Alex: "I think Mark is angry with me."
Jessica: "Why do you think so?"
Alex: "He didn't reply to my messages for three days, and when I saw him at school today, he walked away quickly."
Jessica: "Maybe he's just busy with his family issues. You know his father is in hospital. Instead of assuming things, why don't you _______________?"
What is the most reasonable advice Jessica can give to Alex?
A) wait for him to talk to you first