Read the following lyrics to a traditional song and answer the question below:
When the Alabama's keel was laid
Roll Alabama, roll
They laid her keel at Birkenhead
Oh, roll Alabama, roll
Oh, she was built in Birkenhead
Roll Alabama, roll
Built in the yard of Jonathan Laird
Roll Alabama, roll
Away down the Mersey she rolled one day
Roll Alabama, roll
And across the Western' she ploughed her way
Roll Alabama, roll
What kind of structure do these lyrics show?
O
A. Round
O
O
O
B. Call-and-response
C. Free form
D. Verse and chorus