Which of the following would help us to reduce the amount of water brought from other countries ?
(i) Boiling water after use
(ii) Recycling water
(iii) Obtaining water from the sea
(iv) Building more reservoirs to collect rainwater
(A) (ii) only
(B) (i) & (iii)
(C) (ii) & (iv)
(D) (ii), (iii) & (iv).