Which of the following statements is GENERALLY true of testing? a) Testing can show the presence of defects. b) Testing reduces the probability of uncovered defects. c) Testing can show that a previously present defect has been removed. d) Testing can prove that software is defect free.

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Testing can show the presence of defects (a), which in turn helps to reduce the probability of uncovered defects (b) and can also confirm that a previously present defect has been removed (c). However, it is not possible to prove that software is completely defect-free through testing alone (d).

Which of the Following Statements Is GENERALLY True of Testing