A client who is having gastrointestinal (GI) difficulties is undergoing diagnostic procedures. The client asks the nurse about the difference between ulcerative colitis and Crohn's disease. Which information should the nurse offer?

Anal abscess and fistula rarely occur in Crohn's disease.

Rectal bleeding is a predominant symptom in ulcerative colitis.

Constipation is more common in Crohn's disease.

Colitis and Crohn's disease don't involve chronic inflammation of the gastrointestinal tract