Water from the undigested food is absorbed mainly in the

Explanation:

The bolus entering stomach is acted upon by gastric juices secreted by stomach.

The chyme(acidic food) then enters small intestine.

The food getting mixed with all the juices from pancreas, liver in small intestine makes the absorption of molecules easier through villi.

The undigested food is then passed to the large intestine where excess water is absorbed from it.

Therefore, the water from undigested food is mainly absorbed in the large intestine.

Final Answer:

Hence, the correct answer is option D : Large intestine