Any medical test will sometimes fail to detect a condition when it is present and indicate that there is one when it is not.
A. condition when it is present and indicate that there is one
B. when a condition is present and indicate that there is one
C. acondition when it is present and indicate that it is present
D. when a condition is present and indicate its presence
E. the presence of a condition when it is there and indicate it presence
Ans. C
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