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

Solution : Given:
1. Pardoner 2. Parenthetical 3. Parental 4. Pardon 5. Parenthesis

Step 1: The first three letters of each word are the same – p, a, r , so move on to the next letter.
Step 2: The fourth letter of each word is – d, e, e, d, e. Based on the alphabetical order of these letters, we can arrange them – Par d oner, Par d on, Par e nthetical, Par e ntal, Par e nthesis
Step 3: Compare the total letters of (Pardoner, Pardon) and the seventh letter of (Parent h etical, Parent a l, Parent h esis). Pardon (6-letter word) will come before Pardoner (8-letter word). Parental will come before (Parenthetical, Parenthesis).
Step 4: Compare the ninth letter of (Parenthe t ical, Parenthe s is). Parenthe s is will come before Parenthe t ical as s comes before t according to the alphabetical system.

So, the sequence is Pardon, Pardoner, Parental, Parenthesis, Parenthetical, or 4, 1, 3, 5, 2. Hence, the third option is correct.