The correct answer is: Employee flexibility
Rationale: Job descriptions can be narrow and restrictive, giving people a limited sense of what is their 'job' and what isn't. This can create demarcation lines which prevent people from flexibly switching tasks, or working effectively in multi-skilled teams.
The other options are all potential uses of job descriptions, because they clearly state all the elements of a job: for calculating their value to the organisation (job evaluation), identifying gaps in job holders' ability (training needs analysis) and preparing selection criteria (recruitment).
