De or het arbitrageovereenkomst?

The correct Dutch article is:

de arbitrageovereenkomst

How to use arbitrageovereenkomst

the arbitrageovereenkomstde arbitrageovereenkomst
this arbitrageovereenkomstdeze arbitrageovereenkomst
that arbitrageovereenkomstdie arbitrageovereenkomst
our arbitrageovereenkomstonze arbitrageovereenkomst
your arbitrageovereenkomstjouw arbitrageovereenkomst
every arbitrageovereenkomstelke arbitrageovereenkomst
which arbitrageovereenkomst?welke arbitrageovereenkomst?
a big arbitrageovereenkomst / the big arbitrageovereenkomsteen grote arbitrageovereenkomst, de grote arbitrageovereenkomst