What are the possible causes of digestive system disorders like diarrhea and constipation? ...

A - A disorder in excretion of water by the large intestine.

B-A disorder in absorption of water by the large intestine.

C-A disorder in release of digestive enzymes by the large intestine

The answer i believe is b

Answer - B

Almost all the nutrients are absorbed in the small intestine and only water and roughage reaches the large intestine via peristaltic movements. Before the waste material is excreted out, a large quantity of water is reabsorbed. Therefore, a defect in the re-absorption of water by the large intestine will cause one of these two disorders.