The VS radius is described as 2 times (W), or 1 minute at search speed. Which option expresses this equivalently?

• A. 1 minute at search speed
• B. W
• C. 2 times W
• D. 2 times (W), or 1 min at search speed

Answer: (D)

The idea here is expressing the same quantity in two different but equivalent ways: a distance form and a time form using a constant search speed. If the VS radius is described as twice the baseline unit W, that means the radius equals 2 times W. At the same search speed, covering that distance would take one minute. So the expression that captures both forms—distance and the corresponding time at search speed—is “2 times (W), or 1 min at search speed.” The other options only give one form (either just the time, or just the distance) and don’t preserve the full equivalence between distance and time.