M Mr. Dubey 🎓 Coach ⭐ 103.11K Points 📊 MySQL Q. What is the purpose of foreign key in MySQL? (A) To enforce data duplication (B) To establish a link between tables (C) To increase indexing speed (D) To encrypt data 👁️ Show Answer 💬 Discuss 🔗 Share ⚡Menu ✅ Correct Answer: (B) To establish a link between tables Explanation: Foreign keys maintain referential integrity between two related tables.