People in villages mostly depend on lakes and rivers for water which...

Question

(A) They don't normally purify
(B) They always purify
(C) Is not polluted
(D) Is clean and safe

Answer 1

The best option to complete the sentence would be:

(A) They don't normally purify

So the complete sentence would read: "People in villages mostly depend on lakes and rivers for water which they don't normally purify." This option highlights a common practice in some rural areas where access to clean water treatment processes may be lacking.