In the passage on nation and territory, choose the correct word to complete the sentence "Nonetheless, there is an important difference, and to understand this will _____ a more detailed examination of the relationship between territory and bonding."

Introduction / Context:
After comparing the nation to a family, the passage notes that there is still an important difference between them. It then says that to understand this difference will blank a more detailed examination of the relationship between territory and bonding. The missing verb must express the idea that such understanding needs or demands a careful study. The question checks whether the learner can select the correct verb for this academic construction, even though some printed versions may contain misprints in the options.

Given Data / Assumptions:

• The sentence refers to a necessary further step: a more detailed examination.
• The blank verb must indicate necessity.
• Options shown include enquire, esquire, retire, and logically require, even if not perfectly printed.
• We assume require is the intended verb because it fits meaning and grammar.

Concept / Approach:
In academic writing, the phrase will require a more detailed examination is very common when a topic calls for deeper analysis. Require means need or make necessary. The structure to understand this will require a more detailed examination is entirely standard. Words like enquire or retire cannot carry the meaning of necessity in this sentence. Our approach is to choose the verb that naturally expresses that understanding depends on carrying out a detailed examination.

Step-by-Step Solution:
Step 1: Consider enquire a more detailed examination. This would be ungrammatical; one enquires into something, not a more detailed examination. Step 2: Consider esquire a more detailed examination. Esquire is a title, not a verb that can be used here. Step 3: Consider retire a more detailed examination. Retire means withdraw from activity and does not fit at all. Step 4: Consider require a more detailed examination. This is fully grammatical and precisely expresses necessity. Step 5: Conclude that require is the only verb that produces a clear and meaningful sentence.

Verification / Alternative check:
We verify by comparing with typical textbook language: Understanding this issue will require a more detailed examination of the evidence. This structure is extremely familiar. Replacing require with any other listed option either breaks grammar or radically distorts meaning. Therefore, the intended and correct completion is will require a more detailed examination of the relationship between territory and bonding.

Why Other Options Are Wrong:
Enquire: Used mainly with the prepositions into or about and means to ask for information, not to make something necessary. Esquire: A title historically used for certain social ranks; it is not a verb in modern academic English. Retire: Means to withdraw or stop working and has no logical connection to understanding a theoretical difference. Require: By contrast, fits perfectly and conveys that deeper understanding is conditional on performing further analysis.

Common Pitfalls:
If an exam paper has a misprint or confusing options, candidates may panic and choose a less suitable word like enquire just because it seems closest in spelling. However, focusing on meaning and standard academic phrases usually guides us to the right answer. Here, require is clearly what the sentence needs, and recognising this protects students even when the printed options are imperfect.

Final Answer:
The correct answer is require, completing the sentence to understand this will require a more detailed examination of the relationship between territory and bonding.