It's definitely B. It's only Boston that has to be capitalised as it is the name of a town.
D it caused a rise of scurvy which occurs when not enough vitamins are taken
A is the answer i am pretty sure
Answer:
Rio de Janeiro, Brazil
Explanation:
Nobody throws a party quite like Brazil, and there’s no Brazilian party quite like Rio Carnaval. It's the world’s largest Carnival celebration,Most parade performers wear elaborate costumes, usually made from scratch, but spectators often dress casually for the Sambadrome parade, adding small accessories like beads or feather masks.