Correct Answer: 1, 4, 5, 2, 3

Solution : Given:
1. Den 2. Dragon 3. Drop 4. Desk 5. Doom

Step 1: Compare the first letter of each word. Since all the words start with the same letter D . So, move to the next letter.
Step 2: The second letter of each word is – e, r, r, e, o. Based on the alphabetical order of these letters, we can arrange them – D e n, D e sk, D o om, D r agon, D r op.
Step 3: Compare the third letter of (De n , De s k) and (Dr a gon, Dr o p). De n will come before De s k in the sequence as n comes before s in the alphabetical system. Similarly, Dr a gon will come before Dr o p in the sequence as a comes before o in the alphabetical system.

The sequence will be Den, Desk, Doom, Dragon, Drop, or 14523. Hence, the second option is correct.