Can someone me? 100% sure

in social studies class, cole is making a scale drawing of a flag. the flag measures 24 inches high by 36 inches wide, having three vertical stripes each 12 inches wide. which drawing shows a correct model of this flag?

Ok. We have to go through every single choice and see if it matches. 

For A, we see the scale is 1/4 inch for 1 foot. Now let's look at the height of A. It measures about 1 1/2 inches. There are 6 1/4 inches in a 1 1/2 inch, so we multiply 1 foot by 6 to get 6 feet for the height. But this is clearly wrong. The height is given as 24 inches, which is two feet. Now we can cross A out. 

After you try all of the choices out, you find that choice D presents the solution. 1 inch = 1 foot for D. It measures 2 inches by 3 inches. Therefore, it is 2 feet by 3 feet, which is what 24 inches by 36 inches is equal to.