Engineers design a system for heating the air in a house. They want the heater to bring the temperature to a comfortable level and then maintain it. Which option describes how the engineers should design the system?

A. Include a control in the system that provides negative feedback based on the amount of input.

B. Design the system with a control that varies the amount of input by random amounts.

C. Design the system with a control that senses the amount of output and uses that information to regulate the input.

D. Include a control in the system that provides positive feedback based on the amount of output.

Negative feedback is essential for maintaining stability in control systems. In the context of designing a system for heating a house, engineers should include a control that provides negative feedback based on the amount of output. This means the system will adjust the input to maintain the desired temperature, like a thermostat regulating the heater to keep the house warm.

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