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Which of the following best describes an open-ended question in a questionnaire?
- A“Do you think pollution affects health?” (Yes/No)
- B“Circle the correct year of independence: a) 1945 b) 1946 c) 1947 d) 1948”
- C“List any three reasons why students drop out of school.”
- D“Is your school equipped with smart classrooms? Yes/No”
Correct answer: C