Woman: Our work in the language lab has been of great benefit to me. You know when I first took the course, I used to be quite at a loss, I simply couldn't catch what the teacher said.Man: We share the same experience.Question: What does the man mean
A．He is inexperienced, too. B．He failed the language course himself. C．He thinks the language lab is helpful. D．The teacher has helped him to catch up.