Which technique should a remote pilot use to effectively scan for other air traffic while maintaining visual line of sight of a small UAS?

Why: The FAA's Remote Pilot Study Guide (FAA-G-8082-22) describes the correct technique: "pilots must look from right to left or left to right... For each stop, an area approximately 30° wide should be scanned. The duration of each stop... should [not] last longer than 2 to 3 seconds," overlapping each new field of view by 10°. This stop-and-scan pattern — not a continuous sweep — is what effectively resolves other traffic, supporting the see-and-avoid duty underlying the right-of-way rule in § 107.37(a) (ACS code UA.I.B.K14a). The FAA's own published UAG sample questions pose this exact scenario with the same three answer choices.

• A continuous, unbroken sweep is the opposite of the study guide's technique, which specifically calls for stopping on each ~30°-wide segment for 2 to 3 seconds rather than sweeping continuously.
• Relying solely on peripheral-vision movement detection skips the stop-and-scan technique entirely; the study guide's method is built around direct, segment-by-segment fixation, not peripheral movement detection.