Answer:
The bottom right !
Explanation:
10 + 2 TIMES 10 + 1 (shown on the model)
10 + 2 = 12
10 + 1 = 11
Those two numbers become: 12 and 11 (12 x 11)
And the bottom-right is the one of two models that you can actually use for multiplication; the other models are not even rectangles in the first place ..
Hope this helped ~~