Final answer:
The excerpt 'His English is archaic, for one thing, and he won’t know any of the songs' best indicates that Hamadi is not always understood by others. His use of 'archaic' English and unfamiliarity with popular songs suggests a communication and cultural gap, potentially leading to misunderstanding.
Step-by-step explanation:
The question asks us to identify which excerpt best shows that Hamadi is not always understood by others using a set of provided options. Comparing these options with the context given, we can deduce that the option that best indicates a lack of understanding towards Hamadi is excerpt 'd': 'His English is archaic, for one thing, and he won’t know any of the songs.'
This statement suggests that Hamadi's way of speaking (using 'archaic' English) sets him apart from others and may create barriers in understanding. The mention of his lack of knowledge about popular songs also exposes a cultural gap, implying that there might be other aspects of his character or communication that are obscure or hard to grasp for others. These two factors combined strongly points to Hamadi being misunderstood.
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