There are three blocks, A, B and C. Block B is above A and block A is to the left of C. Block A has a medium yellow square. Block B has two medium black squares and two other medium yellow squares. Medium black square number one is below medium yellow square number two , medium yellow square number one and medium black square number two. Below medium black square number two and medium yellow square number two is medium yellow square number one. Block C has a medium blue square and a medium yellow square. The medium blue square is below the medium yellow square.
Which object is below a medium black square? medium yellow square number one or the medium yellow square that is in block A?
medium yellow square  number one the medium yellow square  that is in block A both of them none of them