A. Rude
B. Dull
C. Illiterate
D. Obstinate
✅ The correct answer is option B.
Rude :offensively impolite or ill-mannered.
Rude :offensively impolite or ill-mannered.
Illiterate :unable to read or write.
Obstinate :stubbornly refusing to change one’s opinion or chosen course of action, despite attempts to persuade one to do so.
Dull :slow to understand; stupid.
Stupid :lacking intelligence or common sense.
Synonym of Stupid is Dull.