A, because it makes the most sense in this context.
In my opinion, the whole poem is quite ironic - although she is mentioning the exultation and the royal color of death, the poem itself begins with the narrator saying that she cannot breathe - that she doesn't want to die.
So, I would say that the ironic parts are:
Exultation is the going
Of an inland soul to sea, -
Past the houses, past the headlands,
Into deep eternity!
Marries Is a Linking Verb
Answer: figure out your biggest/greatest regret and right about like what caused your regret and why you regret it.
Explanation: