Read the following passage and answer the question:
'The city council voted unanimously to ban single-use plastics from all municipal facilities. Supporters argued the move would reduce landfill waste and protect local waterways. Critics contended that biodegradable alternatives are more expensive and would strain departmental budgets.'
What is the main conflict described in this passage?
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A
Environmental groups disagreeing with scientists
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B
Environmental benefits versus financial costs
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C
The council disagreeing about which plastics to ban
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D
State law conflicting with local ordinance