Q. Which of the following opens a file for writing? (A) open('file.txt', 'w') (B) open('file.txt', 'r') (C) open('file.txt', 'a') (D) open('file.txt') 👁️ Show Answer 💬 Discuss 🔗 Share ⚡Menu ✅ Correct Answer: (A) open('file.txt', 'w') Explanation: `'w'` mode opens a file for writing, truncating it first.