The difference between re-testing and regression testing is
- A. re-testing is running a test again; regression testing looks for unexpected side effects
 - B. re-testing looks for unexpected side effects; regression testing is repeating those tests
 - C. re-testing is done after faults are fixed; regression testing is done earlier
 - D. re-testing uses different environments, regression testing uses the same environment
 - E. re-testing is done by developers, regression testing is done by independent testers
 
Answer: Option A
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