There are three blocks, A, B and C. One big yellow square, one big blue triangle and a medium blue triangle are in block A. The big yellow square is touching and near to the medium blue triangle. The big blue triangle is touching the bottom edge of this block. A big black square is touching the right edge of this block. Below and to the left of the big black square is the big yellow square. Far from and below the big black square there is the big blue triangle. To the left of block A we have block B which has a medium yellow square and one medium blue circle. To the left of the medium blue circle there is the medium yellow square. Finally, we have block C. It is to the right of block A. It contains a small yellow square. A big blue square is touching the bottom edge of this block. A medium blue square is above the small yellow square. The big blue square is below and to the right of the medium blue square.
What is to the left of the medium blue square? a big blue square or a medium circle?
big blue square  medium circle  both of them none of them