<prompt> Which of the following is a feature of Ulcerative colitis?Spiking feverProctitisFistula formationCobble stone mucosa  <response>: a. Spiking fever - positive in Crohns disease because of intraabdominal abscess. b. Proctitis - Rectum inflammation is a feature of Ulcerative colitis. c. Fistula formation - Positive in Crohns disease d. Cobble stone mucosa - Positive in Crohns disease 