Where are you going for the summer holiday I___ visiting Aus

Where are you going for the summer holiday I___ visiting Australia .but it costs to希望有人可以帮
Where are you going for the summer holiday I___ visiting Australia .but it costs too much money ,so,i___.
A,considered,haven't decuded Bconsidered,didn't decuded
希望有人可以帮忙,
理由