The given structutre can be divided to 3 parts.
Let the first part be the rectangle ABHI.
The area of the section-1 is,

The second part is also a rectangle. The area of the rectangle BCFG is,

The third section is a triangle. The area of the triangle CED is,

The total area of the given structure is,

Thus, the total area of the given structure is 234 square yards, and the correct option is option D.