If a substance is cohesive, it tends to —.

✅ কেন সঠিক: ‘Cohesive’ means having parts that hold or stick together.

❌ অন্য অপশন: Retaining heat, bending easily and breaking easily describe other properties, not cohesion.

💡 মনে রাখুন: cohesion = sticking together (same substance); adhesion = sticking to something else.