There are three blocks. We call them A, B and C. One big yellow circle and one small blue triangle are in block A. Below and to the left of the small blue triangle there is the big yellow circle. Above block A is block B which contains one medium blue square. Finally, there is block C above block B. It has a medium black square and one small yellow square. The medium black square is touching the bottom edge of this block. It is near to and to the left of the small yellow square.
Which object is below a medium square? the medium blue square or the small yellow square?
the medium blue square  the small yellow square  both of them none of them