Donald and Sara are surveying their neighbors about the community playground. Their questions, written on the survey, are below:

Donald: How many times do you visit the playground in a month?
Sara: Did you visit the playground this month?

Who wrote a statistical question and why?

Sara, because there will be variability in the responses collected
Donald, because every neighbor can give a different answer
Sara, because there can be only one answer to the question
Donald, because every neighbor will give the same answer