A 50-year-old woman attends clinic angrily stating she will make a formal complaint about a delay in her diagnosis. According to GMC Good Medical Practice, what is your most appropriate initial response?ATell her complaints are a waste of NHS timeBBecome defensive and justify your actions in detailCAcknowledge her concerns, apologise for her experience and explain how she can pursue a formal complaintDRefuse to discuss the matter and ask her to leaveEAdvise her to complain directly to the health secretaryCheck my answer