Which word in the sentence, if any, should be followed by a comma?

The calves have gotten loose again Dad.

A.
There is no error in comma usage.

B.
again

C.
gotten

D.
calves
@KyanTheDoodle @butterflydreamer

Question

Which word in the sentence, if any, should be followed by a comma? 

The calves have gotten loose again Dad.
 
 A.
There is no error in comma usage.
 
 B.
again
 
 C.
gotten
 
 D.
calves
@KyanTheDoodle  @butterflydreamer

kyanthedoodle · Answer

Ideas?

anonymous · Answer

i think it could be B or A

kyanthedoodle · Answer

Well there is indeed an error in comma usage. It's kinda hard to explain, but there should be a comma after "again." So yes, B.

anonymous · Answer

Do you mind helping me with more?

kyanthedoodle · Answer

Of course not. 

...

I mean I don't mind. ^^

anonymous · Answer

Haha thank:3 ill tag you