____ has some roots with real parts equal to zero but none with positi

1.	____ has some roots with real parts equal to zero but none with positive real parts.
A.	Marginally stable
B.	'Absolutely stable
C.	Absolutely unstable
D.	Stable
Answer» B. 'Absolutely stable

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____ has some roots with real parts equal to zero but none with positive real parts.

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