20 The following figure shows a second-order system unit step response. out of 0.9 qurstion 0.8 0.7 0.6 05 04 0.3 0.2 01 4. 10 Time (s) This response is Select one: O a Exponentially damped sinusoid Ob. Cntically stable O c Underdamped Od. Overdamped eUndamped (20193_110913240_AAUP - JENIN) / 1 August - 7 August / Final Exa In the signal-flow graph shown, the cofactor of the highlighted path is: He of G. R(s) C(s) Son -Hs Select one: O a. 1- (H2 + G5H1 + G3H3) O b. None of these answers is correct c1- H2 - GSH1) O d1+(- H2 - G5H1) O e. 1 O1.1-- G3H3 + G2G3H4 - G2G3G4G5H5) O g1- G3H3 + G2G3H4) page