The correct answer is C. humble.

Pompous means having or showing an exaggerated sense of one's own importance or abilities. Humble means having or showing a modest or low estimate of one's own importance.

The other options are not antonyms of pompous.

  • Feeble means weak or lacking strength.
  • Normal means usual, typical, or expected.
  • Mild means not severe or intense.

A pompous person is likely to be seen as arrogant, conceited, or self-important. A humble person is likely to be seen as modest, unassuming, or down-to-earth.