A nurse at a walk-in mental health clinic is assessing a client experiencing severe anxiety. The nurse should recognize the client might exhibit which of the following manifestations?

A. Attention-seeking conduct is more typical of personality disorders, such as borderline personality disorder, rather than anxiety. B. Mild fidgeting is common in anxiety, but severe anxiety tends to manifest more intensely, with behaviors like threatening or aggressive actions. C. Severe anxiety can lead to heightened agitation, which may include threatening behaviors as the client struggles to cope with overwhelming feelings of fear or distress. D. While anxiety may impair problem-solving abilities, severe anxiety is more likely to lead to emotional dysregulation, not just mild difficulty in problem solving.