There are two blocks, A and B. Block A has a big blue square, a small black triangle and one medium blue triangle. The big blue square is touching the bottom edge of this block. The medium blue triangle is touching the bottom edge of this block. Below the small black triangle is the big blue square. There is also a medium black triangle in this block. To the right of and below the small black triangle is the medium black triangle. To the left of the medium blue triangle is the big blue square. The medium black triangle is above the medium blue triangle. Above block A there is block B which has a big blue square, a small blue square and one small yellow triangle. Below and to the right of the small yellow triangle is the small blue square. The big blue square is touching and to the right of the small blue square. The small blue square is touching the bottom edge of this block.
What is touching the small blue square? a big blue square or a medium blue triangle that is touching the bottom edge of a block?
big blue square  medium blue triangle  that is touching the bottom edge of a block  both of them none of them