What safety measures are incorporated into the F-35's design?

The correct choice highlights the importance of safety in the design of the F-35 aircraft. The incorporation of redundant systems means that if one system fails, another can take over, significantly enhancing the reliability of critical systems necessary for flight operations. This redundancy is crucial in military aircraft, where operational success and pilot safety are paramount.

Additionally, the integrated ejection seat allows pilots to escape safely in emergencies, providing a vital means of ensuring their safety should the situation on board become untenable. Together, these features reflect a comprehensive approach to safety design, ensuring that the F-35 can operate effectively while minimizing risks to the pilot and mission integrity.

In contrast, options that mention only basic navigation systems, weight reduction features, or external armor plating do not address the multifaceted safety considerations that are integral to modern fighter design. These alternatives lack essential features that protect both the aircraft and the pilot during critical situations.