Which of the following represents the propulsion method used for the INDEPENDENCE variant (LCS-2)?

The correct answer is the combination of diesel and gas turbine (CODAG), which denotes a propulsion system that employs both diesel engines and gas turbines. This configuration is advantageous for naval vessels like the Independence variant, as it allows for flexibility in operations. The diesel engines are primarily used for cruising, providing fuel efficiency during low-speed transit, while the gas turbines can be activated for high-speed maneuvers, delivering significant power when needed.

This hybrid approach also enhances the ship's operational range and endurance, addressing varying mission requirements. Utilizing both diesel and gas turbines enables the Independence variant to maintain a balance between economical fuel consumption and high performance, complying with the demands of modern naval warfare.

The other propulsion methods, such as steam turbines or battery operation, are not utilized in this model, highlighting the specific advantages and technological evolution represented by the CODAG system in high-performance naval ships.