Practice question

Pick B: 4.5 L. Thinking about Lung Volumes, Capacities and Regulation in a practical way — what the structure does, or what the process achieves — leads you here. Clinically and academically, the same logic shows up again and again: 4.5 L is the option that correctly names the structure, process, or principle asked for in Lung Volumes, Capacities and Regulation. Hence 4.5 L is correct. Treat this as a building block for the rest of Lung Volumes, Capacities and Regulation; neighbouring topics often reuse the same principle. Keep a one-line summary card for this idea and revisit it before the paper; short, repeated review beats long cramming sessions.