De or het geldafpersing?

The correct Dutch article is:

de geldafpersing

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

How to use geldafpersing

the geldafpersingde geldafpersing
this geldafpersingdeze geldafpersing
that geldafpersingdie geldafpersing
our geldafpersingonze geldafpersing
your geldafpersingjouw geldafpersing
every geldafpersingelke geldafpersing
which geldafpersing?welke geldafpersing?
a big geldafpersing / the big geldafpersingeen grote geldafpersing, de grote geldafpersing