Expression for α(attenuation constant) in terms of R , G, L and C of a transmission line is:

• A. (R√(C/L)+G√(L/C))0.5
• B. (R√(C/L)+G√(L/C))
• C. (R√(L/C)+G√(C/L))
• D. (R√(L/C)+G√(C/L))0.5