Which of the following is a key advantage of modular weapon systems in modern navies?

Modular weapon systems are specifically designed to offer the advantage of easy upgrades and customization. This flexibility allows modern navies to adapt their weapons capabilities rapidly in response to changing threats or technological advancements. Such systems can incorporate new technologies without requiring a complete redesign or replacement of the overall weapon system. This modularity enhances operational readiness, enables quicker integration of advanced features, and allows for a tailored approach based on mission-specific requirements.

Other options do not hold the same relevance in the context of modular weapon systems. For example, while cost considerations are important, modular systems focus more on adaptability and capability upgrades rather than being inherently less expensive to produce. The notion of being single-use contradicts the fundamental principle of modularity, which emphasizes multiple use cases and adaptability. Lastly, although specialized training is often necessary for advanced systems, modular designs aim to simplify user interfaces and training protocols, making the need for extensive specialized training less of a focal point.