Choose or find odd pair of words - (Petrol : Car) , (Ink : Pen) , (Garbage : Dustbin) , (Lead : Pencil)

C. GARBAGE : DUSTBIN

Choose or find odd pair of words - (Stallion : Colt) , (Horse : More) , (Dog : Bitch) , (Drake : Duck) , (Drone : Bee)

A. STALLION : COLT

Choose or find odd pair of words - (Ornithology : Birds) , (Mycology : Fungi) , (Biology : Botany) , (Phycology : Algae) , (Entomology : Insects)

C. BIOLOGY : BOTANY

Choose or find odd pair of words - (Flurry : Blizzard) , (Moisten : Drench) , (Prick : Stab) , (Scrub : Polish)

A. FLURRY : BLIZZARD

Choose or find odd pair of words - (Sprinkle : Pour), (Happiness : Merriment), (Mist : Fog), (Sad : Unhappy)

D. SAD : UNHAPPY