The benefits of the CDS answer key are as follows: a) Helps candidates to evaluate their performance: The CDS answer key helps candidates to evaluate their performance in the written exam and assess their chances of qualifying for the next stage of selection. B). Provides an idea of the expected cut-off: The CDS answer key provides an idea of the expected cut-off for the exam, which helps candidates to assess their eligibility for the interview stage. C) Allows candidates to challenge incorrect answers: The CDS answer key allows candidates to challenge any incorrect answers in the provisional answer key and ensures that the final answer key is accurate. D) Provides transparency in the evaluation process: The CDS answer key ensures transparency in the evaluation process and helps to maintain the fairness and integrity of the exam. E) Helps candidates to identify their strengths and weaknesses: The CDS answer key helps candidates to identify their strengths and weaknesses in each section of the exam and focus on improving their performance in the future.