Question

Fill in the blank with the most appropriate word.
Water pollution, of course, is not new. We've worried ____ it for years.

• A. from
• B. about
• C. with
• D. of

Answer 1

The correct option is B about

A preposition is a word which comes before a noun or a pronoun and establishes a relationship between the elements of a clause or words.

The correct answer is option B) about as indicates a connection with something (water pollution).

'From', 'with' and 'of' cannot be used here as they indicate a source, inclusion, and possession of something.