Good actions cannot camouflage one's bad qualities.

Answer: Option C

Camouflage : hide or disguise the presence of (a person, animal, or object) by means of camouflage.
Exhibit : publicly display (a work of art or item of interest) in an art gallery or museum or at a trade fair.
Demonstrate : give a practical exhibition and explanation of (how a machine, skill, or craft works or is performed).
Reveal : make (previously unknown or secret information) known to others.
Parade : a public procession, especially one celebrating a special day or event.

Antonym of Camouflage is Reveal