(1) Our town's plastic bag ban is a wise policy. (2) Studies have demonstrated the detrimental effects plastic bags have on the environment. (3) People have argued that banning plastic bags will only result in the increased use of paper bags, simply causing a different environmental problem. (4) However, paper bags can be recycled more effectively than plastic bags. (5) We should all support the new policy on plastic bags.
In which sentence does the author refute an opposing argument?
