Which type of radars does Ring "3" display?

Ring "3" in radar systems specifically represents a type of radar used for target tracking. This includes systems that monitor and follow the movement of specific objects, providing continuous updates on their location and trajectory. Target tracking radars are essential for applications such as air traffic control, military operations, and various types of surveillance.

They focus on maintaining a track of moving targets, often employing advanced algorithms to differentiate between various types of movement and predict future positions. This capability is critical in scenarios where real-time engagement with the target is necessary, such as in defense systems or airspace management.

In contrast, the other types of radars mentioned serve different purposes: search radars are primarily used for locating objects, acquisition radars help in initially identifying and locking onto targets, and weather radars are specialized for meteorological observations. Thus, the distinction in functionality corroborates that the correct answer aligns specifically with the role of tracking targets efficiently.