Choose analogous pair - Revolver : Holster

A. BOOK : BAG

Choose analogous pair - Crown : Royal

D. CRUCIFIX : RELIGION

Choose analogous pair - Graphite : Lubricant

D. DIAMOND : ABRASIVE

Choose analogous pair - Necessity : Invention

A. CURIOSITY : KNOWLEDGE

Choose analogous pair - Birds : Aves

D. MAN : HOMOSAPIENS