Which of the following, if true during the last three years, best reconciles the apparent discrepancy in the facts above?
The Parkville Department of Recreation confiscated abandoned bicycles and sold them at auction to any interested Parkville residents.
Increased automobile and bus traffic in Parkville has been the leading cause of the most recent increase in automobile accidents.
Because of the local increase in the number of people bicycling for recreation. many out -of -town bicyclists ride in the Parkville area.
The Parkville Police Department enforced traffic rules for bicycle riders much more vigorously and began requiring recreational riders to pass a bicycle safety course.
The Parkville Department of Transportation canceled a program that required all bicycles to be inspected and registered each year.
13. Do strong electric currents, by means of the electromagnetic fields that accompany them, cause cancer in people who live and work nearby? Telephone line workers. who work near such currents every day, can provide a test case. They show elevated levels of brain cancer, therefore, the hypothesis of electromagnetic causation is supported.
Which of the following if true, most seriously weakens the argument?
Burying power lines and other measures to protect the public from such electromagnetic fields would be prohibitively expensive.
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