Final answer:
The analogy that represents computer hardware by an automobile and software by the steering wheel most accurately differentiates between the two, likening the physical components of the computer to a car's body and the software to how a steering wheel controls the car.
Step-by-step explanation:
The analogy intending to differentiate computer hardware from software would most appropriately be 'An automobile (hardware) and the steering wheel (software).' Hardware refers to the physical components of a computer system, like the engine, wheels, and body of a car. Software, on the other hand, is the instructions and data that tell the computer hardware what to do, akin to how a steering wheel controls the direction of a car. This comparison illustrates the physical level as seen by an engineer, where all activity within the computer is a series of electronic changes. The design level, from a programmer's perspective, is akin to the machine running a program. Lastly, the commonsense level is how typical users perceive the computer's functions, such as word processing or solving equations.