select the most appropriate word to fill in the blank. Several environmentalists from the city conducted a meet to discuss issues related to the ______ pollution levels created by the growing number of pharmaceutical companies. (a) raise in (b) rise in (c) rising from (d) raising of

Options

A. raise in
B. rise in
C. rising from
D. raising of

Explanation

Raise-to lift something up physically Eg:-If you want to leave the room raise your hand.
Rise-an increase in an amount, a number or a level (naturally) Eg:-The sun rises in the east. So, ‘the rise in pollution level’ is the appropriate answer.