In a repeated error, finding the root cause instead of only finding someone to blame shows which skill?

Correct answer: Root cause analysis

The direct answer is D: root cause analysis. When an error happens repeatedly, simply blaming a person treats only the visible event. Root cause analysis asks why the error keeps returning. The team may examine instructions, training, equipment, communication, workload, or the work process, then correct the underlying weakness. This approach is constructive because it aims to prevent recurrence rather than merely punish someone. Option A, blaming, focuses on a person and may leave the real process problem unchanged. Option B, improper anger, is an emotional reaction and does not solve the cause. Option C, stopping work, may interrupt the task but is not an analysis method or lasting solution. Option D is correct because it means systematically finding the basic reason behind a repeated problem. A useful sequence is: describe the error, collect facts, ask why, identify the underlying cause, and make a corrective change. Memory cue: repeated problem plus search for ‘why’ equals root cause analysis.