Which of the following sentences is best written?
my favorite day of the year is july 24 my birthday.
my favorite day, of the year, is july 24 my birthday.
my favorite day of the year is july 24th—my birthday.
my favorite day of the year is (july 24) my birthday.

Of the following sentences that which is best written is: My favorite day of the year is July 24th—my birthday.

This sentence is best written because it uses punctuation accurately.

After stating the main point which is the fact that July 24th is the speaker's favorite day of the year, a hyphen was used to introduce additional information.

The additional information is that July 24th is the speaker's birthday.

So, this option C uses punctuations correctly.

Learn more about punctuations here:

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warren buffett- the oracle of omaha warren buffett came from a normal type of family in nebraska. when hew as young, he understood the value of investing money and gaining interest on that investment. he strived hard at several jobs, but what made him one of the wealthiest men in the world was his gift for allocating capital within a free market system. warren buffett is an example of a man whose wealth is owed largely to the free enterprise system. buffett was able to allocate his money however he wanted, investing in businesses that he thought could compete effectively. without the free market system, he would not have the right to invest however he wanted, and would not have become so wealthy.

actually the answer would be c.) jane addams worked hard to improve the lives of less fortunate people.