[Solved] When we take up design of systems, ideally how do we define the stability of a system?

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Q.	When we take up design of systems, ideally how do we define the stability of a system?
A.	a system is stable, if a bounded input gives a bounded output, for some values of the input
B.	a system is unstable, if a bounded input gives a bounded output, for all values of the input
C.	a system is stable, if a bounded input gives a bounded output, for all values of the input
D.	a system is unstable, if a bounded input gives a bounded output, for some values of the input
Answer» C. a system is stable, if a bounded input gives a bounded output, for all values of the input
Explanation: for designing a system, it should be kept in mind that the system does not blow out for a finite input. thus, every finite input should give a finite output.

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