Question

complete the text with the better adverbial conjunction.
mr. kellys fear of flying had long kept him grounded. ________, when his son announced that he was getting married in trinidad, mr. kelly applied for a passport and bought a plane ticket.
nonetheless alternatively

Explanation:

"Nonetheless" means in spite of something. Mr. Kelly had a fear of flying (which would keep him from traveling by plane), but when his son announced the wedding in Trinidad, he still took action (applied for passport and bought ticket). It shows a contrast. "Alternatively" means as another option, which doesn't fit the context of contrast here.

Answer:

Nonetheless