The propagation constant of a transmission line is __________

• A. (R + jωL) (G + jωC)
• B. \(\sqrt {\frac{1}{LC}}\)
• C. \(\sqrt {\frac{{\rm{L}}}{{\rm{C}}}}\)
• D. \(\sqrt {\left( {{\rm{R}} + {\rm{j\;\omega L}}} \right)\left( {{\rm{G}} + {\rm{j\;\omega }}C} \right)} \)