Which bomb serves as a warhead for the GBU-10?

The GBU-10 is a laser-guided bomb that utilizes the MK 84 bomb as its warhead. The MK 84 is a general-purpose bomb that weighs 2,000 pounds and is designed to be used in various munition applications. When modified for the GBU-10, the MK 84 is equipped with guidance systems that allow for precision targeting, making it effective in striking specific targets.

The other options represent different types of bombs, but they are not used as warheads for the GBU-10. The MK-82 is a smaller, 500-pound bomb; the BLU-109/B is a penetrating bomb used for hardened targets; and the BLU-117 is another type of general-purpose bomb. None of these serve as the warhead for the GBU-10, as the specific design and capability of the MK 84 allow it to meet the requirements for precision-guided munitions employed in various combat scenarios.