A student pours different volumes of water, both initially at \(20.0^\circ\text{C}\), into two insulated containers. Each of two immersion heaters transfers exactly \(2.10\text{ kJ}\) of energy as heat to the water in one container.

Container	Volume of water
X	\(50.0\text{ mL}\)
Y	\(100.0\text{ mL}\)

The density of the water is \(1.00\text{ g/mL}\), and its specific heat capacity is \(4.20\text{ J/(g}\cdot{}^\circ\text{C)}\). Assume that the containers absorb no energy, no water evaporates, and expansion work is negligible. Let \(\Delta E_{\text{thermal}}\) represent the change in the thermal energy of a water sample. Which choice correctly compares the final temperatures and the changes in thermal energy of the two water samples?