Which one of the following statements about techniques for estimating test effort is correct?

Which one of the following statements about techniques for estimating test effort is correct?
A . The metrics-based technique finds the most similar former project and uses its original estimate for the current project.
B . The expert-based approach is based on the experience of the owners of the testing tasks or by subject matter experts.
C . The metrics-based technique uses metrics supplied by the current test team based on their subjective feel for effort required.
D . In an expert-based approach, the test lead with the most years in the role is chosen to produce the estimate.

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Answer: B