The overvoltage that occur mainly under converter stations are due to _________(i) Lightening and switching overvoltage(ii) Transients produced in conductors(iii) Overvoltage due to fault clearingChoose the correct option.

• A. (i), (ii), (iii)
• B. (ii), (iii)
• C. (iii)
• D. (i), (ii)