Which logical fallacy is used in the text?
When Mason arrived at Heathrow Airport, a British man helped him retrieve his luggage from baggage claim. British people are all so nice!
A. hasty generalization: a broad claim based on too few observations
B. bandwagon fallacy: the assumption that the popular choice is automatically correct
C. slippery slope fallacy: the false assumption that a small first step will lead to extreme consequences
Answer with the option's letter from the given choices directly.

A