Something put into a system, such as resources, in order to achieve a result?

• A. Feedback
• B. Input
• C. Output
• D. Noise

Answer: (B)

Understanding how a system achieves a result hinges on the idea of input being what you feed into the system. Input is the resources, data, or energy you put in to start or drive a process toward a goal. In this question, putting resources into a system to achieve a result matches input because it describes the starting material that the system uses to produce something else. The output would be the result that comes out after processing, feedback is information about the output used to adjust the system, and noise are disturbances that can interfere with the process. So, input is the best fit for “something put into a system in order to achieve a result.”