For Which of the Following Activities Would the Costs Be

Multiple Choice

For which of the following activities would the costs be classified as a cost of detection?

A) Writing test specifications according to the test design.
B) Training developers to better understand the new features of the coding language they will use on the project.
C) Re-running a test case, during the system testing phase, to verify that a fix eliminates a previously found defect.
D) Fixing field failures.