Which Is Most Clearly an Example of a Positive (Not

Which is most clearly an example of a positive (not normative) question?

A) Why doesn't the government provide more money for childcare?
B) Who deserves childcare vouchers more-single working mothers or parents of children with disabilities?
C) Should childcare vouchers cover only licensed day care or also care by a family member?
D) Does receiving a childcare voucher lead to increased family income?