20. Jack: Are you ready for your trip to New York? Carl: Yeah, kind of. But I need to go online to find a cheap flight. Jack:__________ Carl: Well, it’s not that hard to get a cheap ticket. You just have to do some research. (A) Is it hard to take that flight in advance? (B) Is it easy to find bargains on the Internet? (C) Is it hard to go online on that cheap flight? (D) Is it easy to make a reservation in New York?