Correct Answer: 5, 1, 3, 4, 2

Solution : Given:
1. Analyze 2. Assignation 3. Arrival 4. Assassination 5. Analyst

Step 1: Compare the first letter of each word. Since all the words start with the same letter A , then move on to the next letter.
Step 2: The second letter of each word is n, s, r, s, n . Based on the alphabetical order of these letters, we can arrange them – A n alyze, A n alyst, A r rival, A s signation, A s sassination
Step 3: Compare the sixth letter of (Analy z e, Analy s t) and the fourth letter of (Ass i gnation, Ass a ssination). Analyst will come before Analyze in the sequence as s come before z in the alphabetical system. Similarly, Assassination will come before Assignation as a comes before i .

So, the sequence is Analyst, Analyze, Arrival, Assassination, Assignation, or 5, 1, 3, 4, 2. Hence, the fourth option is correct.