Synonym of SMEAR

Answer: Option D

Encourage : give support, confidence, or hope to (someone).
Quarrel : a heated argument or disagreement, typically about a trivial issue and between people who are usually on good term.
Avoid : keep away from or stop oneself from doing (something).
Mark : make a visible impression or stain on.
Smear : coat or mark (something) messily or carelessly with a greasy or sticky substance.

Synonym of Smear is Mark