Correct Answer: 6, 1, 3, 4, 5, 2

Solution : Given:
1. Believe 2. Breathe 3. Bereave 4. Blight 5. Brave 6. Banter

Step 1: Compare the first letter of each word. Since all the words start with the same letter B , then move on to the next letter.
Step 2: The second letter of each word is either e, r, e, l, r, a . Based on the alphabetical order of these letters, we can arrange them – B a nter, B e lieve, B e reave, B l ight, B r eathe, B r ave.
Step 3: Compare the third letter of (Be l ieve, Be r eave), and (Br e athe, Br a ve). Believe will come before Bereave as l comes before r in the alphabetical system. Similarly, Brave will come before Breathe.

So, the sequence is Banter, Believe, Bereave, Blight, Brave, Breathe or 613452. Hence, the first option is correct.