There are three blocks, A, B and C. Block B is below C. Block A is to the left of B. Block A has two medium blue squares. Below medium blue square number two is medium blue square number one. Block B has a medium blue square and one medium black square. Below the medium black square there is the medium blue square. Block C has one medium yellow square and one medium black square. The medium yellow square is below the medium black square. There is also one medium blue square touching the bottom edge of this block. The medium blue square is below the medium black square and the medium yellow square.
Which object is below a medium black square? the medium yellow square or the medium blue square that is touching the bottom edge of a block?
the medium yellow square  the medium blue square  that is touching the bottom edge of a block  both of them none of them