Match the following columns of damped oscillations expressed by x(t)=A e^ -b t / 2 m ( ^…

Match the following columns of damped oscillations expressed by \(x(t)=A e^{-b t / 2 m} \cos \left(\omega^{\prime} t+\phi\right)\), where
 Column-I Column-II
 (A) b = 0 means 1 .  Small damping
 (B) \(\frac{1}{2} k A^{2} e^{-b / m}\) equals 2 . Amplitude
 (C) If \(\frac{\mathrm{b}}{\sqrt{\mathrm{~km}}} \ll 1\) means 3 . No damping
                4 . Total mechanical
                                                           energy
 Choose the correct option regarding above columns. Form the codes given below
           Codes
         A       B       C