A. Overhead system
B. Underground system
C. Both A. and (b)
D. None of the above
Correct Answer: C. Both A. and (b) ✔
Last Updated: June 29, 2018
A. Overhead system
B. Underground system
C. Both A. and (b)
D. None of the above
Correct Answer: C. Both A. and (b) ✔
Last Updated: June 29, 2018