Choose the correct alternative for the given relation.

Mountain : Valley : : Genius : ?

Choose the correct alternative for the word belongs to the same group.

Marble : Slate : Gneiss

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Acoustics : Sound

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Necromancy : Ghosts

Choose the correct alternative for the given relation.

$BUCKET : ACTVBDJLDFSU :\, : BONUS :$ ?

Choose the correct alternative for the given relation.

Entrepreneur : Profit : : Scholar : ?