Choose or find odd pair of words - (Fish : Pisciculture) , (Birds : Horticulture) , (Bees : Apiculture) , (Silkworm : Sericulture)

B. BIRDS : HORTICULTURE

Choose or find odd pair of words - (Sheep : Beat) , (Horse : Neigh) , (Ass : grunt) , (Owl : Hoot)

C. ASS : GRUNT

Choose or find odd pair of words - (Cockroach : Antennae) , (Lizard : Flagella) , (Hydra : Tentacles) , (Plasmodium : Cilia)

B. LIZARD : FLAGELLA

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

D. MAN : MOB

Choose or find odd pair of words - (China : Beijing), (Russia : Moscow), (Japan : Singapore), (Spain : Madrid)

C. JAPAN : SINGAPORE