<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 16-year-old Caucasian boy presents to your family practice office complaining of itchiness. He denies other symptoms. He also denies tobacco, alcohol, or other illicit drug use and is not sexually active. He has no other significant past medical or surgical history aside from a meniscal repair from a wrestling injury sustained two years ago from which he has recovered fully. Vitals are T 98.3, HR 67, BP 11070. On exam you note several pruritic, erythematous, slightly raised annular patches with central clearing on his back.Which of the following additional tests or features are sufficient to make the diagnosis of this boys skin lesion?? A: Acid-fast bacilli on smear from skin scrapings, B: History of recent herald patch and lesions along skin cleavage lines, C: Presence of hyphae when KOH added to skin scrapings, D: Symmetrical distribution on bilaterial extremities progressing proximally, E: History of time spent in a Lyme-endemic region,  <response>: This is a clinical vignette describing a 16-year old boy with pruritic, annular skin lesions on his back. The question is asking which additional test or clinical feature is sufficient to make the diagnosis.Based on the description of annular lesions with central clearing, the most likely diagnosis is tinea corporis, a fungal skin infection. The presence of hyphae on KOH preparation of skin scrapings would confirm this diagnosis. Choices A and D may indicate other infectious causes like tuberculosis or syphilis, but are less likely based on the clinical presentation. Choice B describes the features of pityriasis rosea, which is a viral exanthem unrelated to this patients presentation. Choice E provides information about possible Lyme disease exposure, but there is no mention of EM rash or other systemic symptoms to suggest Lyme disease.C: Presence of hyphae when KOH added to skin scrapings 