The correct answer is: Appraisal is seen as an opportunity to raise workplace problems and issues
Rationale: The other three options were identified as barriers to effective appraisal by Lockett: 'appraisal as unfinished business' (distracting from future-focused improvement planning); 'appraisal as bureaucracy' (a mere form-filling exercise); and 'appraisal as an annual event' (where on-going performance management is required). Lockett also identified 'appraisal as confrontation' as a barrier, but this is not what is implied by 'appraisal is seen as an opportunity to raise workplace problems and issues', which reflects a genuine, job-relevant, problem-solving approach.