A2. The rectangle $A B C D$ in the figure is divided into 7 congruent rectangles. What is the ratio $|B C|:|A B|$?
(A) $2: 3$
(B) $4: 5$
(C) $7: 12$
(D) $8: 15$
(E) The ratio depends on the size of the rectangles.

![](https://cdn.mathpix.com/cropped/2024_06_07_58dcb28c79ea4cc315e1g-14.jpg?height=226&width=332&top_left_y=1229&top_left_x=1573)