The meaning the author's diction provides in the line in bold is B. Many governments are impractical.
<h3>What is Diction?</h3>
This refers to the word choice of an author that is used to communicate an idea or have an effect in a text.
Hence, we can see that from the given text, the narrator makes his arguments against a government as he believes that they are impractical and this is the meaning of the bolded part.