Define the control area.

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Multiple Choice

Define the control area.

A control area is a defined block of controlled airspace where air traffic control services are provided, starting at the surface and extending upward, with defined lateral boundaries. In this context, it is described as a 50 nautical mile radius from the center, with the base at the surface and no fixed upper limit (unlimited). This combination best fits how control areas are presented in training materials because it describes a broad, surface-based region under ATC control throughout its vertical extent. The other options change either the width of the area or impose a finite top height, which does not match this standard description.

A control area is a defined block of controlled airspace where air traffic control services are provided, starting at the surface and extending upward, with defined lateral boundaries. In this context, it is described as a 50 nautical mile radius from the center, with the base at the surface and no fixed upper limit (unlimited). This combination best fits how control areas are presented in training materials because it describes a broad, surface-based region under ATC control throughout its vertical extent. The other options change either the width of the area or impose a finite top height, which does not match this standard description.

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