<prompt> The following primary tumors are common in the vulva except:AdenocarcinomaBasal cell carcinomaChoriocarcinomaSquamous cell carcinoma  <response>: Ans. is c, i.e. ChoriocarcinomaRef: Dutta Gynae 6thed, p334Histological types of vulval cancers Squamous cell carcinoma-90 Melanoma 5 Adenocarcinoma Bartholins gland Basal cell carcinoma Sarcoma 