Step 1: Understanding the question.
Paras' negative attitude arises from dissatisfaction with his performance appraisal. The question asks for a solution to change his attitude.
Step 2: Analyzing the options.
- Transfer: A transfer may relocate Paras to a different position or department, but it may not directly address the underlying attitude issue.
- Leave: Taking leave could provide a break, but it does not resolve the root cause of the negative attitude.
- Motivation: Motivation is the most suitable solution, as it involves improving Paras' mindset and encouraging better performance.
- Coordination: Coordination improves teamwork but does not directly address an individual's attitude problem.
Step 3: Conclusion.
The correct answer is Motivation, as it can help Paras overcome his negative attitude and improve his performance.
Final Answer:
\[
\boxed{\text{The correct answer is (3) Motivation.}}
\]