Which sentence contains an error in the use of end marks or commas? A. We fixed the hole in the fence so the dog can't get out now. B. Mr. James Carrillo, Sr., will assume the responsibilities of principal. C. Walking along the river, we saw the crew team out practicing. D. Yes, ma'am, I know I was out of line.
"B. Mr. James Carrillo, Sr., will assume the responsibilities of principal" contains an error since there should not be a comma after Carrillo, as "Sr." is part of the name.
