I do not understand the question.
"I walked into the kitchen,highly irritated"
The main conflict that happens in this story is between Jay Gatsby, Daisy and Tom. Daisy and Tom are married together. Daisy knew Gatsby years before she met Tom and they were madly in love, until Gatsby had to go away for years. Daisy had then met Tom and they got married.
The given pattern is D because the first line and third line don't rhyme, while the second and fourth do. This is regarding each stanza of the poem.
The Answer should be B. Credentials as going by it's definition and all.