Where can Vso be found on the airspeed indicator?

Vso is defined as the stalling speed in the landing configuration and is crucial for pilots to understand when assessing the safety and performance of their aircraft during landing approaches. On an airspeed indicator, Vso is represented at the lower end of the white arc. The white arc itself indicates the range of airspeeds for flap operation, and Vso marks the minimum safe operating speed for flight in this configuration.

The placement of Vso at the lower end of the white arc provides pilots with a visual reference that assists in determining the appropriate airspeeds for landing and approach maneuvers. This helps in maintaining a safe margin above stall speed, ensuring safe handling of the aircraft when its flaps are deployed.

In summary, the correct answer is based on the understanding of the airspeed indicator's layout and the specific significance of Vso in the context of aircraft operations during landing.