Mario had been hoping to get a scholarship to college based on his basketball skills. He has been on the varsity team since sophomore year, but he injured his knee the summer between junior and senior year. His doctor says that there is a good chance he will be able to play his senior year, but it depends on how his recovery goes. Now all he can do is think about what will happen if he does not recover and how that might impact his future. Sometimes this keeps him up at night worrying. What is Mario experiencing?

A. pain
B. anxiety
C. delusion
D. confusion