Which one of the following is $NOT$ a cause of diarrhea?

$A$ : Vomiting is the forcible expulsion of the contents of the upper gastrointestinal tract through the mouth.
$R$ : The strongest stimuli for vomiting are irritation and distension of the stomach.

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.

Removal of the stomach causes:

Go through the following statements regarding the disorders of the digestive system. Choose the correct statements and select the appropriate option from the codes given below:
$I.$ Indigestion is caused by the poor supply of digestive enzymes,overeating,anxiety,and a lot of junk food.
$II.$ Constipation,an irregular movement of the bowel,is caused due to poor habits,a fiberless diet,emotional stress,and certain drugs.
$III.$ Indigestion can be caused by milk of magnesia.
$IV.$ Ejection of stomach content is controlled by the hypothalamus of the prosencephalon.

Why do the eyes of patients turn yellow during jaundice?