Surprised to see the comment with most kudos is advocating the wrong answer C.
Argument says:
Before you had a test whereby out of 100 people, say 50 had appendicitis and 50 did not. It correctly identified 50 cases of necessary appendicitis but also mis-diagnosed 20 of them.
Now because the condition is so potentially dangerous, you can live with the extra 20 that got operated un-necessarily.
OA is B because it states
"new procedure gives 98% accuracy so it's better". Going
...
Argument says:
Before you had a test whereby out of 100 people, say 50 had appendicitis and 50 did not. It correctly identified 50 cases of necessary appendicitis but also mis-diagnosed 20 of them.
Now because the condition is so potentially dangerous, you can live with the extra 20 that got operated un-necessarily.
OA is B because it states
"new procedure gives 98% accuracy so it's better". Going
...
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