Which sentence does not contain any errors in comma usage?

A.Our car to tell the truth, was last cleaned over a year ago.

B.Moreover New York City has over 7 million inhabitants alone.

C.Our neighbors after all, are very friendly.

D.Nobody signed up for the auditions, however.

Respuesta :

The sentence which does not contain any errors in comma usage is:

D. Nobody signed up for the auditions, however.

In this sentence, it is proper to put comma just before the word "however" to highlight the usage and purpose of this conjunction.