In each word of the following questions consists of pair of words bearing a relationship among these, from amongst the alternatives, pick up the pair that best illustrate a similar relationship.
11. 

Sound : Muffled

A. Moisture : Humid
B. Colour : Faded
C. Despair : Anger
D. Odour : Pungent

12. 

Platform : Train

A. Aeroplane : Aerodrome
B. Hotel : Tourist
C. Quay : Ship
D. Footpath : Traveller

13. 

Train : Track

A. Water : Boat
B. Bullet : Barrel
C. Idea : Brain
D. Fame : Television

14. 

Chalk : Blackboard

A. Type : Point
B. Table : Chair
C. Door : Handle
D. Ink : Paper

15. 

Rectangle : Pentagon

A. Side : Angle
B. Diagonal : Perimeter
C. Triangle : Rectangle
D. Circle : Square