<prompt> Pityriasis versicolor is caused by:Malassezia furfurTrichophyton rubrumAspergillus fumigatusNocardia versicolor  <response>: Ans. A. Malassezia furfurPitvriasis versicolora. Caused by Malassezia furfurb. Involves epidermisc. Most common site is upper part of the trunkd. Woods light is useful for diagnosis 