BBC learning English: Do you speak American English or British English?

BBC learning English: Do you speak American English or British English?
Do you speak American English
or British English?

1). Try this clothes quiz. How do you say this?
pants
trousers
2). And how do you say this?
vest
waistcoat
3). How do you say this?
sweater
jumper
4). How do you say this?
undershirt
vest
5). How do you say this?
rain boots
wellies
Did you answer most of these questions in American English?
Or British English? Tell us in the comments.