- AA is deeper, and −7 is the greater number.
- BB is deeper, and −11 is the greater number.
- CB is deeper, but −7 is the greater number.
- DA is deeper, and −11 is the greater number.
Step-by-Step Solution
Depth is distance below the surface, so B wins on depth: |−11| = 11 is more than |−7| = 7. But as integers, −7 > −11, because −7 lies to the right of −11 on the number line. For negative readings 'deeper' and 'greater' point in opposite directions, and that is exactly the trap here.
Answer: C) B is deeper, but −7 is the greater number.