Block 1 of mass \(m\) and Block 2 of mass \(2m\) are initially held at rest on a rough horizontal surface with a uniform coefficient of kinetic friction \(\mu\). An internal mechanism between the blocks is released, pushing them apart so that they slide in opposite directions across the surface until friction brings both blocks to rest. If Block 1 slides a distance \(d_1\) in time \(\Delta t_1\) and Block 2 slides a distance \(d_2\) in time \(\Delta t_2\), which of the following correctly pairs the ratio of their stopping distances \(\dfrac{d_1}{d_2}\) with the ratio of their stopping times \(\dfrac{\Delta t_1}{\Delta t_2}\)?