Select the correct option regarding disorders of the digestive system.

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.

Inflammation of the intestine or colitis may be the cause of:

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 inflammation of the intestinal tract is due to the infection of which microorganism?

Distinguish between constipation and indigestion. Mention their major causes.