What is the rhyme scheme of the following poem (the / indicates the end of the
line):

Oh mother, mother, where is happiness?/
They took my lover's tallness off to war/
Left me lamenting. Now I cannot guess/
What I can use an empty heart-cup for./
He won't be coming back here any more./
Some day the war will end, but, oh, I knew/
When he went walking grandly out that door/
That my sweet love would have to be untrue./
Would have to be untrue. Would have to court/
Coquettish death, whose impudent and strange/
Possessive arms and beauty (of a sort)/
Can make a hard man hesitate and change./
And he will be the one to stammer, "Yes."/
Oh mother, mother, where is happiness?!

A. ABBAABBACDCCDC

B. ABABBCBCDEDEAA

C. ABABCDCDEFEFGG

D. ABABBCBCCDCDAA