听下面一段材料，回答第1-4题。 1. Why are public holidays in Britain described as bank holidays? A. People draw money from the bank before holidays. B. They are days when bank clerks take a vacation. C. They are days when banks are officially closed. 2. When were British bank holidays recognized as public holidays? A. In 1871. B. In 1870. C. In 1871. 3. How many bank and public holidays are there in Northern Ireland? A. 8. B. 10. C. 18. 4. What can we learn from the conversation? A. Holidays in Scotland are different from the rest of the UK. B. The businessmen in Scotland don't prefer the local holiday closing. C. All schools in Scotland are officially closed on bank holidays.