An algebra tile configuration. There are 3 large tiles, 5 tiles each half the size of a large tile, and 8 tiles each one-quarter the size of a large tile. Two of the large tiles are labeled plus x squared and 1 is labeled negative x square. Two smaller tiles are labeled plus x and 3 are labeled negative x. Six of the smallest tiles are labeled + and 2 are labeled minus.
Which polynomial is represented by the algebra tiles?

x^2 – x – 4
x^2 – x + 4
3x^2 – 5x + 8
3x^2 – 5x – 8