Question

Select the correct answer.
Which sentence uses the comma correctly?
ОА.
Chicago Philadelphia, and St. Louis are all large cities.
OB.
Chicago, Philadelphia, and St. Louis are all large cities.
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Answer 1

Answer:

For me the correct answer is b

Answer 2

Answer:

The second answer (OB) is correct

Explanation:

When you have a list of something or more than one example you have to use commas in between to separate each word. For example I have a cat, dog, mouse and rabbit.