Which of the following is true?

Which of the following is true?

• A. Confirmation testing is testing fixes to a set of defects and Regression testing is testing to establish whether any defects have been introduced as a result of changes.
• B. Confirmation testing is testing to establish whether any defects have been introduced as a result of changes and Regression testing is testing fixes to a set of defects.
• C. Confirmation testing and Regression testing are both testing to establish whether any defects have been introduced as a result of changes.
• D. Confirmation testing and Regression testing are both testing fixes to a set of defects.

Answer: Option A