The speaker means that B. <span>Even when they were tired and had doubts, they remained faithful.
The "voices singing in [their] ears" were themselves, thinking of the doubts they have. </span>
Michael Drayton was trying to present to the world his poems and his ideas of education. (Sorry if I’m wrong!)
There is more potential for a misunderstanding with communication between 2 or more people of different cultural backgrounds because they are coming from a different set of values, beliefs, customs and social practices. They might not <span>use the same language to communicate their ideas.
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