Correct Answer: Serene

Solution : The correct choice is the third option .

Stormy is an environment characterised by turmoil or agitation. It refers to the state of turbulence. Serene means calm and peaceful. When something is serene, it is typically characterised by a lack of disturbance, making it the correct antonym for "stormy".

The meanings of the other options are as follows:

• Ferocious means cruel or violent.
• Sporadic means scattered or isolated.
• Rough means having an irregular surface.