What could result from inadequate weight distribution in an aircraft?

Inadequate weight distribution in an aircraft can significantly impact its stability and control during flight. When the weight is not evenly distributed, it can lead to issues such as an increased risk of stalling or difficulty in handling the aircraft because it may not respond predictably to pilot inputs. This instability can be particularly dangerous during critical phases of flight, such as takeoff and landing, where precise control is paramount.

For instance, if weight is concentrated too far forward or backward, it may lead to an excessive nose-up or nose-down attitude, respectively. Such conditions could compromise the aircraft’s performance, resulting in an increased likelihood of accidents or crashes. Ensuring proper weight distribution is essential for maintaining the aircraft's center of gravity within safe limits, thus enhancing overall flight safety.

In contrast, the other options do not align with the consequences of inadequate weight distribution. Increased fuel efficiency typically requires optimal weight management. Improving passenger comfort is usually achieved through proper seating arrangements and in-flight services rather than weight distribution. Enhanced performance also relies on balanced load distribution to ensure optimal aerodynamic efficiency and control, making the risk of a crash the most direct result of improper weight distribution.