Which of the following statements is GENERALLY true of testing?

a. Testing can show the presence of defects. b. Testing reduces the probability of hidden defects remaining in the software. c. Testing can show that a previously present defect has been removed. d. Testing can prove that software is defect-free.

  • A. a, b and c
  • B. a, b and d
  • C. a, c and d
  • D. b, c and d

Answer: Option A