Suppose Kevin is a famous actor who is known for his intense method acting. He immerses himself completely in his roles and often stays in character both on and off set.<br>During filming for his latest movie, Kevin's co-stars noticed that he was behaving strangely and seemed to be speaking in an accent that wasn't his own. They were unsure if he was still in character or if something else was going on.
Can we infer that "Kevin's co-stars were not concerned about his behavior."? Yes, no, or maybe?