The transfer function of a system is given by,\(\frac{{{V_0}\left( s \right)}}{{{V_i}\left( s \right)}} = \frac{{1 - s}}{{1 + s}}\)Let the output of the system be \({v_0}\left( t \right) = {V_m}\sin \left( {\omega t + \phi } \right)\) for the input, \({v_i}\left( t \right) = {V_m}\sin \left( {\omega t} \right)\). Then the manimum and maximum values of ϕ (in radians) are respectively

• A. \(- \frac{\pi }{2}\;and\frac{\pi }{2}\)
• B. \(- \frac{\pi }{2}\;and\;0\)
• C. \(0\;and\frac{\pi }{2}\)
• D. \(- \pi \;and\;0\)