The answer is C, 186 square units.
To solve you can separate the figure into two rectangles, on on top and one on the bottom.
The top one has an area of 66 inches (6 x 11)
For the bottom one, you must find the side length, so you add up the measurements of 7, 6, and 11 to get 24. You then multiply 24 and 5 to get 12 units.
Adding the two together, you end up with 186 square units.
