While completing an admission assessment for a client with unstable angina, which closed ended questions should the nurse ask about the client's chest pain?

A. This is an open-ended question, not closed-ended. B. A closed-ended question like "Does your pain occur when walking short distances?" is specific and allows the nurse to understand the triggers and pattern of the pain, which is important for assessing unstable angina. C. "When did you first notice the pain in your chest?" is also a relevant question but less specific to understanding the current pattern and triggers of the pain. D. "How do you feel when the pain becomes noticeable?" is open-ended and less specific in identifying triggers and patterns of the pain.