<prompt> A 60-year-old man with a chronic cough, bloody sputum, and marked weight loss is diagnosed as having tuberculosis. A serpentine-like colonial morphology is noted on Lowenstein-Jensen agar. This latter finding is caused by which of the following factorsA large slimy capsuleWax DCoagulaseCord factor  <response>: Virulence of the organism is correlated with cord factor trehalose dimycolate. 