Crop = 40, Iron = 3, Clay = 4
Thus: Crop - Clay + Iron = 40 - 4 + 3 = 39
Answer: 1. ((9 - 2) * 11 + 13) / (6 / 3)
My answer: E
If you closely inspect the symbols on the pennants, you can easily observe a pattern.
There are 3 main shapes here: Square, Square with a curved bottom and a Trapezium.
Now each of them has two similar derivatives: One without the top side and One with a gap in the middle of the top side.
Of all the shapes, only one has a missing derivative: The Trapezium
The Trapezium doesn't have a derivative with a gap in the middle of the top side. Thus, my answer E.
Marcella and Edward must take the sign depicted in Option E.
Or you may have to see an angry Marcella chasing Edward in the prison cell while Ed's stupid friend would be intensely playing sudoku in the corner.