Question

O worthiest cousin!
The sin of my ingratitude even now
Was heavy on me: thou art so far before
That swiftest wing of recompense is slow
To overtake thee. Would thou hadst less deserved,
That the proportion both of thanks and payment
Might have been mine! Only I have left to say,
More is thy due than more than all can pay.
Which phrase from the passage best contributes to Macbeth's heroic image?
A. swiftest wing
B. thanks and payment
C. my ingratitude
D. worthiest cousin