The acronym COLD stands for which phrase?

• A. Cold Obstructive Lung Disease
• B. Chronic Obstructive Pulmonary Disease
• C. Chronic Obstructive Lung Disease
• D. Chronic Obstructive Lung Disorder

Answer: (C)

The main idea is decoding the acronym by mapping each letter to a word. C stands for Chronic, O for Obstructive, L for Lung, and D for Disease, giving the phrase Chronic Obstructive Lung Disease. This matches the C O L D letter-by-letter. The term uses Lung and Disease, not Pulmonary or Disorder, which is why the other phrasings don’t fit. In practice, the more common term is COPD (Chronic Obstructive Pulmonary Disease), but when spelling out COLD, the correct expansion is Chronic Obstructive Lung Disease.