Which one of the following statements is true regarding the digestion and absorption of food in humans?

  • A
    Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions like $Na^+$.
  • B
    Chylomicrons are small lipoprotein particles that are transported from the intestine into blood capillaries.
  • C
    About $60\%$ of starch is hydrolysed by salivary amylase in our mouth.
  • D
    Oxyntic cells in our stomach secrete the proenzyme pepsinogen.

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