Which light control signals are correct for ground operations?

The correct answer identifies the appropriate light control signals used specifically for ground operations. In aviation, these signals are essential for communicating with pilots regarding their actions while on the ground, particularly in taxiing situations.

Flashing red signals indicate that the aircraft must stop, which is crucial for ensuring safety during ground movement. Flashing green signals are typically used to indicate that it is safe for the aircraft to taxi or proceed, which allows pilots to move when clear of obstacles or other hazards. Alternating red and green signals are also significant and are employed to provide information about runway operations or potential hazards that might be present.

This selection effectively encompasses a comprehensive range of signals pertinent to ground operations, ensuring that pilots can navigate in a safe and controlled manner. The combination of these signals aligns with standard practices in aviation for managing ground traffic and preventing accidents.

Other options might include signals that are associated with airborne scenarios or do not fit the defined meanings for ground operations. This selection directly correlates with the established signal definitions and practices used in aeronautics, reinforcing its correctness.