Two radioactive samples, Sample X and Sample Y, each have an initial mass of \(10\text{ g}\). Sample X has a molar mass of \(100\text{ g/mol}\) and a half-life of \(2\text{ hours}\), while Sample Y has a molar mass of \(200\text{ g/mol}\) and a half-life of \(4\text{ hours}\). Let \(A_1\) and \(A_2\) be the initial decay activities of Sample X and Sample Y at \(t = 0\text{ hours}\), respectively, and let \(A_3\) and \(A_4\) be their activities at \(t = 4\text{ hours}\), respectively. Which of the following correctly ranks the four activities?