The purpose of the author to include the sentence is "to condemn the insincerity of his critics’ advice."
<h3 /><h3>What is a purpose?</h3>
A purpose can be defined as the intention of the writer behind something. It may be for a sentence, a word, or a phrase.
The sentence "Shallow understanding from people of good will is more frustrating than absolute misunderstanding from people of ill will" explains that a little understanding from the good will persons is more frustrating than being misunderstood from the ill will ones.
He included this sentence to critisize or condemn the insincerity of his critics’ advice. He feels that the critics pay less attention to the whole text and then give shallow advices.
Therefore the correct option is A.
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Source: The encyclopedia.com
"Mr Carr asks him how long he has been stealing from the store, and Alfred says he's never done it before."
I'm guessing it is true then?
How do you write a poem, because the others can be answered with a simple yes or no
Comments that the sky looks blue