A more positive word for argument is discussion
Because the tongue is pinkish and sometimes it is an animal because it possesses the bad or wildness of an animal.
Marcus seems to be between stages of identity development, according to this passage. For most of the passage, Marcus is in the stage of Identity Moratorium, as he is thinking about his views and opinions and what to do about them, since they are in conflict with Mr. Benson's, and may get him expelled. He considers speaking out, but also considers apologizing. Ultimately, Marcus ends the passage in the stage of Identity Achievement, because he determines, after weighing out his options, that his own values are what matter most to him.
For the first question, item D is correct because you'll need to place a comma before and after parenthetical elements: "<span>The beach, which closes after Labor Day, has white sand."
For the second question, item D is correct because commas are only needed for a series of three or more elements; thus, no commas are needed: "</span><span>I bought a beautiful pitcher and eight glasses."
For the third question, there are no commas needed; thus, item A is the correct sentence: "</span><span>The music made me sleepy."
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For the fourth question, item C is the correct response because commas are needed after subordinate clauses that begin a sentence: "</span><span>As the band marched across the field, the crowd cheered."
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For the fifth question, item D is the correct response because in order to keep from having a run-on sentence a comma is always needed before a conjunction that is connecting two complete sentences: "<span>He works long hours, yet he keeps up with his studies."</span>
