The $pK_a$ of acetylsalicylic acid (aspirin) is $3.5$. If the $pH$ of human stomach fluid is $2-3$ and the $pH$ of the small intestine fluid is $8$,then aspirin will:

  • A
    not ionize in the small intestine and the stomach.
  • B
    completely ionize in the small intestine and the stomach.
  • C
    ionize in the stomach and not in the small intestine.
  • D
    ionize in the small intestine and not in the stomach.

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