Which statement describes the standard lateral separation for aircraft operating more than 50 miles from the monitoring antenna?

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Lateral separation minima depend on how far you are from the radar monitoring antenna. The farther the aircraft are from the radar, the less precise the radar track becomes, so a larger separation is required to maintain a safe margin. For aircraft operating more than 50 miles from the monitoring antenna, the standard lateral separation is five nautical miles. This extra spacing helps compensate for potential measurement and track-identity errors that increase with range, ensuring safe separation even when radar information is less precise. Smaller separations are used closer to the antenna where radar accuracy is higher, so five miles is the appropriate standard for distant operations.