De or het researchmaster?

The correct Dutch article is:

de researchmaster

How to use researchmaster

the researchmasterde researchmaster
this researchmasterdeze researchmaster
that researchmasterdie researchmaster
our researchmasteronze researchmaster
your researchmasterjouw researchmaster
every researchmasterelke researchmaster
which researchmaster?welke researchmaster?
a big researchmaster / the big researchmastereen grote researchmaster, de grote researchmaster