In SAR operations, what distinguishes line search from grid search in terms of pattern coverage?

In SAR operations, what distinguishes line search from grid search in terms of pattern coverage?

• A. Line search moves in parallel lines to cover strips; grid search uses two orthogonal patterns to ensure full coverage.
• B. Line search uses circular patterns; grid search uses a random walk.
• C. Line search is for open terrain; grid search is for urban areas.
• D. Line search requires more time than grid search; grid search is faster.

Answer: (A)