题目选项分析

In order to combat Carville's rampant homeless problem, Mayor Bloomfield recently proposed a ban on sleeping outdoors in the city's many parks. He claims that such a measure will force the homeless to either leave Carville or to find means other than sleeping in public parks.

Which of the following, if true, suggests that Mayor Bloomfield's plan will be successful?

【选项】Until the ban, the city's many homeless shelters were at less than fifty percent occupancy.