Select the correct option that indicates the arrangement of the given words in…

Concept: In dictionary (alphabetical) order, words are compared letter by letter from the left. At the first point where two words differ, the word with the earlier letter (a before b before c, …) comes first. If one word is a strict prefix of another — it ends exactly where the shared portion ends — the shorter word is placed before the longer one, since having no further letter counts as coming before having any letter at all.

Application: All five words share the same root "Petition" (P-e-t-i-t-i-o-n), so the ordering is decided entirely by what comes after this shared root:

1. Petition (word 3) has nothing after the shared root — by the prefix rule, it ranks before every word that adds further letters, so it comes first.

2. Among the remaining words, compare the letter immediately after "Petition": Petitionary (word 1) continues with 'a', Petitioned (word 5) and Petitioners (word 4) continue with 'e', and Petitioning (word 2) continues with 'i'. Since 'a' precedes 'e', which precedes 'i', Petitionary ranks next, then the two 'e' words, then Petitioning last.

3. Between Petitioned and Petitioners (both continuing with 'e' after the root), compare the next letter: Petitioned continues with 'd' and Petitioners continues with 'r'. Since 'd' precedes 'r', Petitioned ranks before Petitioners.

4. Putting this together: Petition, then Petitionary, then Petitioned, then Petitioners, then Petitioning — that is, in terms of the word numbers, the sequence 3, 1, 5, 4, 2.

Cross-check: Reading the derived sequence pairwise confirms each step: Petition before Petitionary (prefix rule), Petitionary before Petitioned ('a' before 'e'), Petitioned before Petitioners ('d' before 'r'), and Petitioners before Petitioning ('e' before 'i'). Every adjacent pair is consistent, so 3, 1, 5, 4, 2 is the correct dictionary-order sequence.