Explanation:

To assist a client in gaining insight into anxiety, it is crucial to identify triggers or events that lead to increased anxiety. This approach helps the client recognize causal factors contributing to their anxiety, promoting self-awareness and understanding. Choice A is incorrect because it should focus on triggers rather than specific behaviors. Choice C is incorrect as it emphasizes managing anxiety through relaxation techniques rather than understanding its roots. Choice D is incorrect as it addresses resistive behavior rather than exploring the causes of anxiety.