In the following passage some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

Comprehension:
Concerned (1) ________ the pollution levels and the role firecrackers played in (2) _________ it, the Supreme Court last October banned the sale, use and manufacture of crackers that (3) ___________ not 'green'. This meant that these crackers couldn't be loud (4) _________ a certain limit and had to be (5) __________ by the Petroleum and Explosives Safety organisation (PESO).