Words given on the left side of (::) are related with each other by some Logic/Rule/Relation. Select the  missing word/word pair on the right side of (::) from the given alternatives based on the same Logic/Rule/Relation.

Pen : Author :: Axe: ?

Woodcutter

Logic here is :

Pen : Author

Pen is used by Author to do his work .

SImilarly ,

Axe: ?

Axe is used by Wood cutter to do his work .

Woodcutter is correct answer .