Which rotary-wing aircraft is primarily used for Anti-submarine Warfare?

The correct choice pertains to the specific rotary-wing aircraft that is designated and equipped to perform Anti-submarine Warfare (ASW) missions. In the realm of military aviation, certain aircraft have capabilities, systems, and features that make them well-suited for the detection and engagement of submarines.

In the context of the Navy's operational capabilities, the designated aircraft excels in systems such as sonar, torpedo deployment, and advanced reconnaissance technologies. These features are crucial for identifying underwater threats, tracking submarines, and executing missions that involve engaging and neutralizing these threats.

The other options may represent different rotorcraft that serve various roles, but they do not possess the specialized equipment or design focus necessary for dedicated Anti-submarine Warfare operations. Hence, the choice stands out due to its alignment with the strategic need for effective submarine detection and engagement within naval operations.