We have three blocks. We call them A, B and C. Block A has one medium blue square and one small yellow square. Above the small yellow square is the medium blue square. Block B is to the left of block A. It contains one medium blue square and a medium yellow triangle. One big yellow circle is also in this block. Above the medium yellow triangle and the big yellow circle there is the medium blue square. To the left of block B there is block C. It contains a medium black square.
Which object is to the left of a medium blue square? the black shape or the triangle?
the black shape the triangle  both of them none of them