De or het managementinstrument?

The correct Dutch article is:

het managementinstrument

Rule Words ending in -ment: usually het. See the rule

How to use managementinstrument

the managementinstrumenthet managementinstrument
this managementinstrumentdit managementinstrument
that managementinstrumentdat managementinstrument
our managementinstrumentons managementinstrument
your managementinstrumentjouw managementinstrument
every managementinstrumentelk managementinstrument
which managementinstrument?welk managementinstrument?
a big managementinstrument / the big managementinstrumenteen groot managementinstrument, het grote managementinstrument