Abnormal frequency of bowel movement and increased liquidity of the faecal discharge is known as

Given below are two statements.
Statement $I$: Defecation is an involuntary process that takes place through the anal opening guarded by sphincter muscles.
Statement $II$: Distension of the rectum stimulates pressure-sensitive receptors that initiate a neural reflex for egestion.
In light of the above statements,select the correct answer from the options given below.

The abnormal frequent movement of the bowel and increased liquidity of the faeces is called:

In which of the following diseases is the liver affected,and the skin and eyes turn yellow due to the deposition of bile pigments?

The Nobel Prize for Medicine was awarded for confirming the role of $Helicobacter \text{ } pylori$ in causing:

Lactose intolerance in adults is related to