Question

Which sentence does not contain an unnecessary comma?

Answer 1

I think the correct answer is "The president lives at 1600 Pennsylvania Avenue, NW, Washington, DC 20500" because in writing the address in the sentence it requires comma each part of it and in between the sate and zip code there is never a comma.

Answer 2

Answer:

The correct answer is "The president lives at 1600 Pennsylvania Avenue NW, Washington, DC 20500".

Explanation:

One of the uses of commas is to separate the information of an address, helping to understand which information refers to the street, city, the state, and the ZIP code. The correct way to write an address is to write the street name, the city, state, and ZIP code on the third. The correct way of writing the address in the example is  "1600 Pennsylvania Avenue NW, Washington, DC 20500". Pennsylvania Avenue NW is not separated by commas since NW is part of the street name which means northwest.