John is filling the empty right triangular prism container shown below with a lightweight concrete to set the horse watering bucket on in the barn so it's not muddy all the time. The concrete weights 3 pounds per cubic foot. How much will the mold weigh when it's completely filled with concrete?

(image shows leg A is 4 feet tall and angle c is 36.87 the triangle is a right triangle)

12 pounds

10.68 pounds

32.04 pounds

16.24 pounds