A) X is small intestine.
B) Y is large intestine.
C) Z is oesophagus.
D) P is large intestine.
Correct Answer: D
Solution :
X is oesophagus with no change in amount of undigested food. Y is stomach and Z is small intestine with decreasing amount of undigested food and P is large intestine as no further digestion occurs here.
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