A coaxial cable transmission line is known to have a characteristic impedance of 50 $$Omega$$. Measurement of the capacitance between the center conductor and the outer shield indicates a capacitance per unit length of 133 pF/m. The inductance per unit length of the coaxial cable is most nearly:
A. 6.6 nH/m
B. 33 nH/m
C. 0.33 $$mu$$H/m
D. 3.3 $$mu$$H/m