<prompt> Characteristic histological finding in benign hypertensionProliferative end arteritisNecrotizing arteriolitisHyaline arteriosclerosisCystic medial necrosis  <response>: Ans. c Hyaline arteriosclerosisRef: Robbins 9thpg 490, 938-939; 8thpg 495a. Also called obliterative endarteritis seen in syphilisTBradiation, poisoning, etcb. Malignant MTc. Benign HTd. MC in marfan syndrome 