Which part of the digestive system is affected in celiac disease?

Removal of the stomach causes:

Anxiety and eating spicy food can lead to ......... in a normal person.

$A$ : In acute constipation,purgatives containing magnesium salts are generally used.
$R$ : The osmotic effect of $Mg^{2+}$ in the intestinal lumen prevents water reabsorption from the intestine. $Mg^{2+}$ increases the solute concentration in the intestinal lumen because $Mg^{2+}$ is absorbed very slowly.

$A$ : 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 $I$: Fat-soluble bilirubin is toxic to brain cells.
Statement $II$: Yellowness of the conjunctiva of eyes and skin,whitish stool,etc.,are some of the symptoms of jaundice.