Which sentence is punctuated correctly?
A)Some of the leading social network sites are Facebook LinkedIn and Twitter.
B)Some of the leading social network sites are Facebook, LinkedIn and Twitter.
C)Some of the leading social network sites are Facebook, LinkedIn, and Twitter.

Question

Quizplus · Accepted Answer

When listing items, it is proper to use a comma to separate each one. The last comma before the conjunction (in this case, "and") is optional, but including it can improve clarity and readability. Therefore, option C is the most correctly punctuated sentence.

Which Sentence Is Punctuated Correctly