Preface is to book as overture is to.........

Choose the correct alternative for the given relation.

Berries : Bush

Choose the correct alternative for the given relation.

Sorrow : Death : : Happiness : ?

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Dog : Squirrel : Tail

Choose the correct alternative for the given relation.

Embarrass : Humiliate

Choose the correct alternative for the given relation.

Porcupine : Rodent : : Mildew : ?