Which sentence has correct capitalization? A. When Meghan got home from her vacation in italy, she said she was glad to be back in the USA. B. When Meghan got home from her vacation in Italy, she said she was glad to be back in the Usa. C. When Meghan got home from her vacation in Italy, she said she was glad to be back in the USA. D. When Meghan got home from her vacation in italy, she said she was glad to be back in the usa.