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