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