"Benevolent" means kind, generous, and well-meaning.
a) Generous – Similar in meaning to benevolent, so incorrect.
b) Kind – Synonymous with benevolent, so incorrect.
c) Malevolent – Means having ill intentions, being cruel or evil, which is the opposite of benevolent, so correct.
d) Compassionate – Means showing kindness and empathy, similar to benevolent, so incorrect.
Thus, the correct antonym of "Benevolent" is "Malevolent."
