There are three blocks. We call them A, B and C. Block B is above block A and it is below block C. Block A contains one medium blue square. Block B contains a small yellow triangle, one big yellow square and one small black triangle. This block also has a medium black triangle. To the left of and near to the small black triangle which is near to and below the medium black triangle is the small yellow triangle. Below the medium black triangle is the big yellow square. Block C contains a big blue square.
Which object is below a big blue square? the small black triangle or the medium black triangle that is touching the right edge of a block?
the small black triangle  the medium black triangle  that is touching the right edge of  a block  both of them none of them