A. With beds of rocks and gravels
B. Lined with stones
C. Both A. and B.
D. Neither A. nor B.
Correct Answer: C. Both A. and B. ✔
Last Updated: August 25, 2020
A. With beds of rocks and gravels
B. Lined with stones
C. Both A. and B.
D. Neither A. nor B.
Correct Answer: C. Both A. and B. ✔
Last Updated: August 25, 2020