You have been assigned an argumentative writing task where you are to challenge the use of performance enhancing drugs by olympic athletes.

which is the best example of a precise claim you might make for your argument?
a) people who use steroids or other performance enhancing drugs do so because they make them bigger, faster, and stronger.
b) there was a canadian sprinter in the 1980's named ben johnson who got his gold medal taken away because he got caught using steroids.
c) there have been many situations where olympic athletes have used performance enhancing drugs to get a competitive edge; the problem is that only sometimes do they get caught.
d) though many athletes argue that as long everybody has the same rules and restrictions, then any legal performance enhancing drug should be allowed, those drugs are still harmful and create inequalities that will damage the pure competition of the olympics.

B) There was a Canadian sprinter in the 1980's named Ben Johnson who got his gold medal taken away because he got caught using steroids.

Explanation:

The use of performance enhancing drugs has been part of olympics since the beginning. The only problem is that sometimes they get caught and sometimes they do not. It is fairly unfair to enhance performance through drugs in comparison to those who are participating without the use of such drugs. That is clear cut an unfair competition.

This point can be strengthened with the help of an example that can certainly make the drug user to be vary. This is option B) There was a Canadian sprinter in the 1980's named Ben Johnson who got his gold medal taken away because he got caught using steroids.

For the first question, item D is correct because you'll need to place a comma before and after parenthetical elements:  "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:  "I bought a beautiful pitcher and eight glasses."

For the third question, there are no commas needed; thus, item A is the correct sentence:  "The music made me sleepy."

For the fourth question, item C is the correct response because commas are needed after subordinate clauses that begin a sentence:  "As the band marched across the​ field, the crowd cheered."

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: "He works long​ hours, yet he keeps up with his studies."