Step 1: Understanding staffing.
Staffing refers to the process of hiring, training, and placing the right people in the right jobs within the organisation.
Step 2: Analyzing the options.
- Training: Training is a key aspect of staffing, as it involves preparing employees for their roles.
- Authority: Authority is related to the delegation of decision-making power and is not directly part of the staffing process.
- Recruitment: Recruitment is an essential part of staffing, as it involves attracting candidates to fill positions.
- Selection: Selection is another key aspect of staffing, as it involves choosing the right candidates from the pool of applicants.
Step 3: Conclusion.
The correct answer is Authority, as it is not directly related to the staffing process but more to the management structure.
Final Answer:
\[
\boxed{\text{The correct answer is (2) Authority.}}
\]