Q. Given the code String s = new String("abc"); Which of the following call is not valid? (A) s.trim(). (B) s.replace('a', 'A'). (C) s.substring (3). (D) s.setCharAt (1,'A'). 👁️ Show Answer 💬 Discuss 🔗 Share ⚡Menu ✅ Correct Answer: (B) s.replace('a', 'A').