How is the HMMWV powered in the event of a fuel shortage?

The HMMWV, or Humvee, is designed with flexibility in mind, particularly when it comes to fuel options. It can operate on a variety of fuels, including diesel and biodiesel, which makes it highly versatile and able to adapt to different situations, including fuel shortages. The ability to run on multiple fuel types ensures that in a battlefield or remote operational environment, the vehicle can continue to perform even if conventional gasoline supplies are diminished.

This capability is crucial for military operations where logistics can be challenging and the availability of specific fuel types may not always be guaranteed. Thus, the design choice to allow the HMMWV to utilize different fuels enhances its utility and readiness, making choice B not only correct but vital for operational effectiveness.