Correct option is D
The correct antonym of the given word is (d) Malevolent.
Benevolent: showing kindness, goodwill, or charity; having a desire to do good to others. (दयालु / परोपकारी)
Example: The benevolent king was loved by his subjects.
Malevolent: having or showing a desire to harm others; evil-minded. (दुष्ट / दुर्भावनापूर्ण)
Example: He cast a malevolent glance toward his rival.
Synonyms: kind, generous, charitable, compassionate.
Antonyms: malevolent, malicious, spiteful, cruel.
Meanings of other given options:
· (a) Magnanimous: very generous or forgiving (उदार / विशाल हृदय वाला)
· (b) Unsparing: harsh, merciless or without restraint (निर्दयी / कठोर)
· (c) Benign: gentle and kind (कोमल / कृपालु)