Your friend messages you: "Hey! I'm flying to London next week. What's one thing I absolutely shouldn't miss there?"
Which of the following would be the most helpful and concise response?
A) London is a huge city with many attractions. You should definitely research everything online before you go.
B) Oh, London! I went there once. The weather was a bit rainy, but I still had fun.
C) You must visit the British Museum! It's incredible and free to enter.
D) Don't forget your passport and make sure you have enough money. Travel can be expensive.
E) I don't know much about London, sorry.