Choose the correct alternative for the given relation.
$6 : 18 :\, : 4 : \,?$
$2$
$6$
$8$
$16$
Choose the correct alternative for the given relation.
Greed : Corruption
Choose the correct alternative for the given relation.
Engineer : Map : : Bricklayer : ?
Choose the correct alternative for the given relation.
Command : Order : : Confusion : ?
Choose the correct alternative for the given relation.
Symphony : Music
Choose the correct alternative for the given relation.
Crow : Carrion : : Leech : ?