Question: How does cascading an integral controller in the forward path of a control system affect the relative stability (RS) and the steady-state error (SSE) of

How does cascading an integral controller in the forward path of a control system affect the relative stability (RS) and the steady-state error (SSE) of that system?
(a) Both are increased
(b) RS is reduced but SSE is increased
(c) RS is increased but SSE is reduced
(d) Both are reduced.

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