Which body-composition assessment method uses low-dose X-rays to differentiate bone density from lean and fat components?

• A. Whole‑body X‑ray plethysmography (WBXP)
• B. Computed tomography (CT)
• C. Dual-energy X-ray absorptiometry (DXA)
• D. Quantitative X‑ray densitometry (QXD)

Answer: (C)