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