Antonym of MAWKISH

Answer: Option B

Mawkish : sentimental in an exaggerated or false way.
Sentimental : of or prompted by feelings of tenderness, sadness, or nostalgia.
Intelligent : having or showing intelligence, especially of a high level.
Certain : able to be firmly relied on to happen or be the case.
Carefree : free from anxiety or responsibility.

Antonym of Mawkish is Intelligent