De or het studieverplichting?

The correct Dutch article is:

de studieverplichting

Rule Words ending in -ing: almost always de. See the rule

How to use studieverplichting

the studieverplichtingde studieverplichting
this studieverplichtingdeze studieverplichting
that studieverplichtingdie studieverplichting
our studieverplichtingonze studieverplichting
your studieverplichtingjouw studieverplichting
every studieverplichtingelke studieverplichting
which studieverplichting?welke studieverplichting?
a big studieverplichting / the big studieverplichtingeen grote studieverplichting, de grote studieverplichting