Choose or find odd word - Commander , Commodore , Brigadier , Admiral

C. BRIGADIER

Choose or find odd word - Cygnus , Orion , Scorpio , Cassiopeia , Vega

A. VEGA

Choose or find odd word - Disperse , Aggregate , Congregate , Accumulate

A. DISPERSE

Choose or find odd word - Mermaid , Sphinx , Unicorn , Dinosaur

D. DINOSAUR

Choose or find odd word - Laos , India , Nepal , Afghanistan , Bolivia

B. INDIA