The Aegis installed weapons system is found on which platform?

The Aegis Combat System is primarily found on cruisers, making this the correct choice. This advanced naval weapon system uses powerful radar and associated technology for tracking and engaging aerial threats in real-time. Cruisers, designed to support task forces and protect carrier groups, are equipped with Aegis to provide air defense capabilities against missile attacks and aircraft.

While destroyers and frigates also serve important roles in naval operations and can have advanced weapon systems, the distinctive feature of the Aegis system is its specific implementation in cruisers, which emphasizes large-scale battle network integration and multi-role capabilities. Submarines, on the other hand, operate in stealth and primarily focus on undersea warfare, making them less conducive to systems like Aegis that are reliant on surface-based operations and radar.