Correct option is C
✅ (c) Light:
·
Onerous means something that is burdensome, heavy, or difficult to bear.
· The antonym is the word that means the opposite of this.
·
Light means easy to carry or not heavy, which is the opposite of onerous.
· Hence, "light" is the correct antonym because it conveys ease or lack of burden.
❌ (a) Burdensome: Synonym of onerous, not opposite. ❌ (b) Difficult: Similar in meaning to onerous, not opposite. ❌ (d) Fluent: Means smooth or flowing, unrelated in meaning.