Correct option is A
The correct antonym of the given word is
(a) Courteous.
Given word (Scornful): It means showing contempt, disrespect, or strong dislike; looking down on someone. (Hindi meaning: तिरस्कारपूर्ण, उपेक्षापूर्ण)
Example: He gave a scornful reply to the suggestion.
Correct answer word (Courteous): It means polite, respectful, and well-mannered in behaviour. (Hindi meaning: विनम्र, शिष्ट)
Example: The staff was courteous to all the visitors.
Synonyms (scornful): contemptuous, disdainful, insulting.
Antonyms: courteous, respectful, polite, humble.
Meanings of all the other given options:
• (b) Brash: rude, too confident, and careless in manner (ढीठ, बदतमीज़)
• (c) Stormy: full of storms; turbulent (तूफानी, अशांत)
• (d) Heavenly: divine; very pleasant (स्वर्गीय, अत्यंत सुखद)