Well, since jaunt and excursion mean relatively the same things, they are near synonyms, we are looking here for a word that has a relatively similar meaning to that of 'resignation'. Since you didn't give us any examples, I will just list you some of its synonyms: departure, retirement, termination, abdication, leaving, notice, abandonment, withdrawal, etc.
Noun i would say
hope it helps
In <span><em>Hills Like White Elephants</em>, a couple is discussing on whether they should terminate the woman's pregnancy, which she is willing to do if it will make him happy, but he won't want her to go through it if she doesn't want to. As they wait for this <em>trip</em>, which seems to be to take them to the place where the procedure would be performed, they go back an forth on said decision.
Therefore, your best answer would be option A.</span>
