I'll be an eternal fan!!!

Which sentence does not contain any errors in comma usage?

A.
Golden retrievers, once thought of only as family pets, are now used to help the blind.

B.
People, living in glass houses, shouldn't throw stones.

C.
That poem, composed by my sister won first prize in the contest.

D.
Lou working quickly finished long before the rest of us.

Question

I'll be an eternal fan!!!

Which sentence does not contain any errors in comma usage?
	
	
 
A.
	Golden retrievers, once thought of only as family pets, are now used to help the blind.
	
 
B.
	People, living in glass houses, shouldn't throw stones.
	
 
C.
	That poem, composed by my sister won first prize in the contest.
	
 
D.
	Lou working quickly finished long before the rest of us.

a1234 · Answer

A. It uses an appositive phrase and uses commas correctly.

anonymous · Answer

Hmm, It's either A or B.

a1234 · Answer

You can eliminate both the commas in B.