B seems best : Twelve months ago, ComStat redrew the map of Bay City so that 20 traditionally high-crime blocks that had been part of western Bay City are now counted as part of another district.
logic :
some one claims that X ---->causes Y .
how do i weaken it ?
i come up with an idea and claim that Z --->causes Y !!!!
logic :
some one claims that X ---->causes Y .
how do i weaken it ?
i come up with an idea and claim that Z --->causes Y !!!!
