Choose or find odd pair of words - (Cow : Calf), (Dog : Bitch), (Lion : Cub), (Tortoise : Turtle), (Insect : Larva)

B. DOG : BITCH

Choose or find odd pair of words - (Husband : Wife) , (Lion : Fox) , (Dog : Cat) , (King : Minister)

D. KING : MINISTER

Choose or find odd pair of words - (Pistol : Gun) , (Knife : Dagger) , (Engine : Train) , (Car : Bus)

C. ENGINE : TRAIN

Choose or find odd pair of words - (Atom : Electron) , (Train : Engine) , (House : Room) , (Scooter : Gears) , (Curd : Milk)

A. CURD : MILK

Choose or find odd pair of words - (Fish : Shoal) , (Cow : Herd) , (Sheep : Flock) , (Man : Mob) , (Bee : Swarm)

D. MAN : MOB