Chronic diarrhea is caused by

Correct option is B

Ans (b)
Sol. Explanation:
· Intestinal parasites such as Giardia, Entamoeba histolytica, and Cryptosporidium are common causes of chronic diarrhea, especially in developing countries. They disrupt normal digestion and absorption in the intestines, leading to prolonged diarrhea.
· Corynebacterium diphtheriae causes diphtheria, a respiratory infection, not chronic diarrhea.
· Candida albicans typically causes fungal infections such as oral thrush and vaginal candidiasis but is not a common cause of chronic diarrhea.
· Mycobacterium tuberculosis causes tuberculosis, primarily affecting the lungs, though it can sometimes affect the intestines in rare cases, leading to other gastrointestinal symptoms.