Read the paired arguments about science lab simulations. Passage A: Simulations are valuable when a real experiment would be too expensive, slow, or unsafe. Students can test variables they could never control in a classroom. The author concedes that other concerns may matter, yet treats this priority as the most practical way forward. Passage B: Simulations support learning, but they cannot replace all lab work. Students still need to measure, spill, recalibrate, and see how real data become messy. The author does not dismiss the goal of the first passage, but shifts attention to a condition the first passage gives less weight. Which answer correctly identifies a shared claim and a contrasting priority?