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

By saying "...statistically canceling out the benefits that the seat belt confers" (Lines 10, Para. 2), the author means that ______.

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

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

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

D．wearing seat belts does not necessarily reduce death from truffle accidents