The sentence which best shows correct comma usage is " What would you like, Ken, for breakfast?" Option B is correct.
When we use vocatives in sentences, that is, names that are being addressed direcly, they must be separated with a comma or commas from the rest of the sentence.
In this particular case, the word Ken is between commas to be separated from the rest of the sentence. However, since vocatives tend to be at the beginning or end of a sentence, it should be semarated only by one comma.
The novel to kill a mockingbird came at a crucial time in american history in which (segregation) and (racism) were fueling debates across the country.
The Yes Men focus their hoaxes on big corporations to gain the attention of the public as well as showing that they care for their customers.
I hope this is the answer you were looking for and that it helps!! :)
