A comma should be after each separate things you are listing. The answer is:
<span>
The
Library of Congress is home to the world's most extensive comic-book
collection, oldest original newspaper collection, and most abundant
collection of cartographic items.</span>
90% of people marry there 7th grade love. since u have read this, u will be told good news tonight. if u don't pass this on nine comments your worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of your life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love you
Lieutenant is not a part of the main clause, and it is an address to a person that is inserted into the sentence. It must be therefore separated by comas on both sides: the correct answer is a.
Langues chose, style of writing, and length of writing would be my answers.
tell me if i'm wrong
