We have three blocks, A, B and C. Block C is above B and block A is above C. Block A contains a medium blue square and a medium black square. A medium yellow square is touching the bottom edge of this block. It is below the medium blue square and the medium black square. Below the medium black square there is the medium blue square. Block B has one medium blue square. Block C contains one medium blue square.
What is below the yellow thing? a medium blue square that is in block C or a medium blue square that is in block A?
medium blue square  that is in block C medium blue square  that is in block A both of them none of them