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