In the following spelling question, four words are given, out of which only one word is correctly spelt. Identify the correctly spelt English word among Liaison, Laiseon, Laision, and Liesion.

Introduction / Context:
Spelling questions check your ability to recognise standard English spellings, especially for words borrowed from other languages such as French. The word Liaison appears frequently in administrative, diplomatic, and business contexts to describe a person or role that connects two groups. Because it comes from French, many learners find its spelling tricky and confuse the position of vowels and consonants.

Given Data / Assumptions:

• Four variants are given: Liaison, Laiseon, Laision, and Liesion.
• Exactly one of these matches the standard English spelling used in good dictionaries.
• Your task is to identify that correct form.
• No knowledge of meaning is strictly required, but knowing the word helps you recall its spelling.

Concept / Approach:
Liaison is spelled L I A I S O N, with an alternating pattern of consonants and vowels. The structure is li ai son. This pattern is fixed in English and does not change by region. The other options change the order of vowels or introduce incorrect sequences such as eo or ie, which do not match the established spelling. When dealing with loanwords, it is helpful to remember common patterns and to visualise how you have seen them printed in newspapers and textbooks.

Step-by-Step Solution:
Step 1: Focus your attention on the sequence of vowels in each option. Step 2: Examine Liaison. The vowel sequence is i a i o, which may look unusual but is the known pattern in English. Step 3: Examine Laiseon. Here the sequence a i e o introduces an extra vowel and breaks the normal pattern. Step 4: Examine Laision. This misplaces the vowels, giving a i i o, and does not match standard spelling rules for this word. Step 5: Examine Liesion. This looks similar to lesion, a completely different word, and the ie combination is not used in Liaison. Step 6: Conclude that Liaison is the only correct and recognised spelling.

Verification / Alternative check:
Think about how the word is used in phrases like liaison officer or sales liaison. If you have seen it written in official notices, business cards, or reports, you will recall the exact sequence L I A I S O N. Checking a reliable dictionary would confirm that this is indeed the accepted spelling. None of the other options appear in serious writing or standard dictionaries as variants of this particular word.

Why Other Options Are Wrong:
Laiseon: Adds an extra vowel and breaks the established sequence, making it a non standard form.
Laision: Misplaces the vowels, resulting in a form that does not match the dictionary entry.
Liesion: Resembles lesion, which is a different word meaning an area of damage, and is not a variant of Liaison.

Common Pitfalls:
Candidates often rely on how words sound rather than how they look in print. For foreign origin words, sound can be misleading because spelling patterns follow the original language. To improve, maintain a small list of frequently tested spellings such as Liaison, Entrepreneur, and Bureaucracy, and revise them regularly. Visual memory is your ally in these questions, so reading widely and paying attention to spellings in headlines and official texts will steadily build your confidence.

Final Answer:
The correctly spelt word is Liaison, so option a is correct.