If a habit is described as ‘Pernicious’, it is: Vocabulary A Highly beneficial B Suddenly stopping C Harmful or destructive D Calm and steady 💡 Show Explanation 💡 Explanation: Meaning: Harmful or destructive (সর্বনাশা / ক্ষতিকর). Mnemonic: Sounds like Piranha + Vicious (A vicious fish that harms you).