Correct Answer - Option 4 : there is no reflected wave on the line
A long overhead lossless power transmission line is terminated with its characteristic impedance. It indicates that the reflection coefficient is zero.
The reflection coefficient is, \({\rm{\Gamma }} = \frac{{{Z_0} - {Z_L}}}{{{Z_0} + {Z_L}}}\)
Where ZL is the line impedance and Z0 is the load impedance.
Therefore, there is no reflected wave on the line.