This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
[{'content': 'Which of the following is affected during the development of a furuncle? \nSelect and explain. \nA. Sweat gland, B. Sebaceous gland, C. Holocrine gland, D. None', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Furuncles (boils) usually sta in infected hair follicles, though some are caused by retained foreign bodies and other injuries. If the pilosebaceous apparatus becomes obstructed at the skin level, the development of a furuncle can be anticipated. Because the base of the hair follicle may lie in subcutaneous tissue, the infection can spread as cellulitis or it can form a subcutaneous abscess. Ref: Mundy L.M., Dohey G.M. (2010). Chapter 8. Inflammation, Infection, & Antimicrobial Therapy. In G.M. Dohey (Ed), CURRENT Diagnosis & Treatment: Surgery, 13e.', 'role': 'assistant'}]