Which of the following is NOT a structural component of a vehicle?

The correct answer is B, as electronic systems are not considered structural components of a vehicle. Structural components typically refer to parts of the vehicle's body and frame that contribute to its support, integrity, and safety. These include elements such as the front outer components, side components, and rear components, which are essential for maintaining the vehicle’s overall structure.

On the other hand, electronic systems encompass a wide array of components related to the vehicle's functionality and operations, such as the infotainment system, control modules, and sensors. While these systems are crucial for modern vehicle performance and driver experience, they do not serve a structural role that affects the vehicle's strength or safety in the way that the body and frame do. Thus, identifying electronic systems as non-structural aligns with the definition and understanding of vehicle components in automotive contexts.