Which of these practices appears to be a counterexample to the claim that if we know that a social practice will result in killing innocents, then it is immoral and ought to be abolished?

Question

Quizplus · Accepted Answer

All of the practices listed (manufacturing prescription drugs, building bridges, and driving cars) can result in the death of innocents due to accidents or errors, yet they are not considered immoral or abolished because they provide significant benefits to society.

Which of These Practices Appears to Be a Counterexample to the Claim