Step 1: Approach.
We ask what the person is afraid of losing, and then find the level of Maslow's pyramid that protects against that loss.
Step 2: Identify the worry.
Rajat fears an unstable income and a hard life after retirement. A steady job removes both worries.
Step 3: Link to the pyramid.
Food and rest come first. Once they are met, people look for protection from future uncertainty, such as a secure job, savings and pension. This second level is safety.
Step 4: Test the higher levels.
Affiliation is about relationships, esteem is about respect and recognition, and self-actualisation is about personal fulfilment. A person who only wants a stable job is not asking for any of these.
Step 5: Cross check with examples.
Textbooks list job security, stable income and pension as examples of safety needs. Rajat's wishes match these examples closely.
Step 6: Conclude.
Only the safety level fits, so option 3 is the answer.
Final Answer:
Job stability is a safety need, option 3.
\[ \boxed{\text{Option 3}} \]