There are three blocks, A, B and C. Block A is below B and block B is below C. Block A contains one small yellow square. Block B contains one medium yellow square. Block C has a big yellow triangle, one medium yellow triangle and one big blue circle. The medium yellow triangle is to the right of the big blue circle. The big yellow triangle is near to and below the medium yellow triangle.
Which object is above a medium yellow square? the small object or the big blue circle?
the small object the big blue circle  both of them none of them