A City police department plans to set up a special task

A City police department plans to set up a special task force to
identify and prosecute drunk drivers. A City council member objects,
claiming that the expense of putting together the task force is not
justified because less than one out of ten thousand drivers on the
street on a given night are driving while intoxicated.

Which of the following , if true , most weakens the argument made by
the objecting council member?

a. Similar task forces in other cities have not brought about
increases in convictions for drunken driving.
b. More than half of the auto accidents in the city are caused by
drunken drivers.
c. Most drunken drivers are identified as such only after they have
already caused an accident.
d. Strong penalties for drunken driving are already written into
state laws.
e. Putting together the special task force will require a 10%
increase in the police department's budget.