Researchers tested four prosthetic-limb designs for grip force (N) at low and high battery levels: Design I, 78 (full), 62 (low); II, 70, 68; III, 82, 51; IV, 65, 63. They argued that for daily use, full-charge grip is misleading; low-charge stability matters more. The strongest support is ______
Which choice most logically completes the text using the data above?
- A
the average across designs.
- B
Design III's full-charge force of 82.
- Ccheck_circle
the rank reversal: Design III had the highest full-charge grip (82 N) but the lowest low-battery grip (51 N); Design IV's lower full-charge grip (65) holds up at low battery (63).
- D
Design I's full-charge grip of 78.
Explanation
"Full-charge grip is misleading" requires showing rank reversal between charge levels. Choice B captures III's drop and IV's stability, supporting the claim.