The option with the commas is the best written sentence
The correct answer is B. It used literary excerpts to illustrate word usage.
Johnson used excerpts from well known books to show how different words are used which was a completely new idea, revolutionary one, since the previous dictionaries showed what the word mean and were sometimes difficult to understand.
As for this question together with the options presented with it, the most probable answer and the most likely one to be the correct answer is the third option which is C. group discussions.
Though critical listening can also be utilized in the other situations presented as options, critical listening would be very useful during group discussions. During conversation with friends and family, it isn't advisable since it might ruin the bond build between parties and might instigate something worse. During a play, yes, you can, but not all the time. In persuasive speeches, it is more on the details that are being thrown.
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