A、The transportation of the trip. B、The air-sick. C、The sea-sick. D、The quarrel between a couple. A

M: Are you looking forward to your trip to Canada, Julie?
W: I can’t wait to see Canada, but I’m scared of the journey. My husband insists on flying, but I want to sail. Planes make me nervous.
M: There’s nothing to be frightened of. How many planes fly across the Atlantic every day?
W: I’ve no idea. Hundreds, I suppose.
M: And how often do you hear of a crash? ... Once or twice a year?
W: Yes, but sere planes fly so high and fast flint once is enough.
M: Look, there are more mad casualties per day than air deaths per year. Air transport is really safe compared with road transport.
W: I’d still prefer to go by sea. Ships may not travel fast, but at least you can relax, I’d love a trip on a luxury liner like the Queen Elizabeth Ⅱ.
M: It’s fine ff you’re a good sailor, but have you ever traveled far in a rough sea?
W: No. I’ve only been in a boat once. I sailed down the River Thames on a sightseeing tour... But in any case, I’d rather be seasick than dead.