Answer:
D. 2bh+bh
Step-by-step explanation:
You can divide that shape into five separate pieces, 4 triangles and 1 square.
The formula for the area of a triangle is A=1/2bh.
Multiply this by 4 becuase there are 4 triangles and you get A=2bh.
Then you add on the area of the square and you have A=2bh+bh