What type of guidance does a weapon system use to acquire and close to terminal intercept on a target?

The type of guidance used by a weapon system that acquires and closes to terminal intercept on a target is homing guidance. This method relies on the weapon generating signals or receiving cues from the target itself, allowing it to adjust its trajectory in real-time to achieve impact. Homing systems can be active, where the weapon emits its own signal, or passive, where it detects emissions from the target, such as radar or infrared sources. This type of guidance is essential for accurately engaging moving or evasive targets, as it enables the weapon system to make necessary adjustments based on the target's dynamics during the approach.

In contrast, other types of guidance—such as command guidance—typically involve directing the weapon via signals from a remote operator or a guidance control station, which may not be effective in all combat scenarios. Navigation guidance usually refers to pre-programmed flight paths based on waypoints and does not involve acquiring targets dynamically. Hybrid guidance combines characteristics of different methods but does not focus solely on the homing mechanism tailored for terminal interception. Therefore, homing guidance stands out as the appropriate answer due to its capability for precise engagement with real-time adjustments to target intercept.