To determine the answer to the question, you need to adjust the scale of the original drawing from 1 box = 5 feet to 1 box = 10 feet.
Since the original rectangle has a length of 8 units and a width of 6 units, to create a new scale drawing with a 1 box = 10 feet scale, you need to multiply the dimensions by 2.
The new length of the rectangle would be 8 units * 2 = 16 units.
The new width of the rectangle would be 6 units * 2 = 12 units.
Therefore, the correct answer would be the image described as follows:
"A grid is shown with a rectangle drawn on it. The rectangle is 16 units long and 12 units wide, labeled with 16 and 12 respectively. Scale: 1 box = 5 feet."
This image represents the new scale drawing of Tomas's front yard with a scale of 1 box = 10 feet.