Arrange the given words in the sequence in which they occur in the dictionary: i. Permanence ii. Permanent iii. Permafrost iv. Permeability.

Introduction / Context:
This question involves four words beginning with Perm or Perma: Permanence, Permanent, Permafrost and Permeability. You are asked to arrange them in true dictionary order and then select the corresponding label sequence. Because they share a long common prefix, you must be precise when comparing each letter beyond that prefix to determine their correct ordering.

Given Data / Assumptions:

• The words and labels are i. Permanence, ii. Permanent, iii. Permafrost and iv. Permeability.
• All words start with Per, and some also share Perma.
• Dictionary order is based on strict alphabetical comparison from left to right.
• The answer choices are different sequences of these labels.
• Only one sequence will match the alphabetical ordering of the full words.

Concept / Approach:
The general method is to identify the earliest position where each pair of words differs and order them according to the alphabet at that position. First, distinguish between Perma and Perme words, since a comes before e. Among the Perma group, compare the letters following Perma to decide internal order. Once you have ordered Permafrost, Permanence and Permanent, you then place Permeability after them, as its fourth letter e follows a in the alphabet.

Step-by-Step Solution:
Split the words into Perma words (Permafrost, Permanence, Permanent) and Perme words (Permeability). Within the Perma group, consider the letters after Perma. For Permafrost, the next letter is f; for Permanence and Permanent, the next letter is n. Since f comes before n in the alphabet, Permafrost (iii) must appear first among the Perma words. Now compare Permanence and Permanent. Both start with Permanen. At the next differing letter, Permanence continues with c while Permanent continues with t, and c comes before t, so Permanence (i) comes before Permanent (ii). Permeability begins with Perme, where e at the fourth position comes after a at the fourth position in Perma, so Permeability (iv) must come after all Perma words. Thus the dictionary order is Permafrost, Permanence, Permanent, Permeability, or iii, i, ii, iv.

Verification / Alternative check:
Write the sequence Permafrost, Permanence, Permanent, Permeability and compare adjacent pairs. Permafrost versus Permanence: after Perma, f is before n, so Permafrost is correctly first. Permanence versus Permanent: both share Permanen, and c at the ninth position in Permanence comes before t in Permanent, so the order is correct. Permanent versus Permeability: after Per, a in Perma comes before e in Perme, so Permanent must come before Permeability. No contradictions arise, confirming that the sequence is alphabetically correct.

Why Other Options Are Wrong:
Option A begins with Permanent and ignores Permafrost, which clearly comes earlier due to the letter f after Perma. Option B places Permafrost first but puts Permanent before Permanence, ignoring the c versus t comparison. Option C misplaces Permeability at the front, despite the fact that its fourth letter e follows a. Option E, None of these, is incorrect because option D precisely reflects the correct dictionary ordering iii, i, ii, iv.

Common Pitfalls:
A common error is to rely on how often one has seen a word, rather than on strict spelling comparisons, leading to guesses such as putting Permanent before Permanence. Another pitfall is failing to separate Perma from Perme words before comparing, which can cause confusion when looking at long strings of letters. A careful, stepwise comparison that first groups words by shared prefixes and then checks the next differing letter is the most reliable way to handle such questions.

Final Answer:
The correct dictionary order is Permafrost, Permanence, Permanent, Permeability, corresponding to the sequence iii, i, ii, iv.