What distinguishes the MQ-8B from other aircraft types listed?

The MQ-8B is specifically distinguished from the other aircraft types listed because it is an unmanned aerial vehicle (UAV). This classification means that the MQ-8B operates without a pilot onboard and is controlled remotely or autonomously. The use of UAVs like the MQ-8B allows for various military applications, including surveillance, reconnaissance, and targeting support, without risking human lives in potentially dangerous environments.

In contrast, the other options describe aircraft types that involve piloted operations or specific mission roles that do not apply to the MQ-8B. For instance, a strike fighter is a piloted aircraft designed for engaging enemy targets, reconnaissance aircraft typically have pilots and are used for gathering intelligence, and cargo transports are meant for carrying personnel or cargo, which also requires a pilot. Therefore, the unmanned nature of the MQ-8B is its defining characteristic that sets it apart from those listed options.