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