Q. Which of these will return the number of keys in a dictionary `d`? (A) len(d) (B) d.length() (C) d.count() (D) size(d) 👁️ Show Answer 💬 Discuss 🔗 Share ⚡Menu ✅ Correct Answer: (A) len(d) Explanation: `len(d)` returns the number of keys in dictionary `d`.