By saying "... statistically canceling out the benefits that the seat belt confers" （Para

By saying "... statistically canceling out the benefits that the seat belt confers" (Para. 2), the author means______

A．wearing seat belts does not have any benefits from the statistic point of view

B．deaths from wearing seat belts are the same as those from not wearing them

C．deaths from other reasons counterbalance the benefits of wearing seat belts

D．wearing seat belts does not necessarily reduce deaths from traffic accidents