The correct answer is A.
In “My Last Duchess,” the speaker, the Duke of Ferrara, explains that his late wife was flirty and ungrateful. She was trying to escape her husband and when her behaviour escalated he took action and ended her life.
In "Life in a Love," the beloved of the speaker has stated her intentions of leaving him. However, he declares that he will never allower her to do so. That it is his destiny to chase her, and even if she turns him down, he will continue to pursue her.