School Financing Arrangements Are Most Vulnerable to Being Declared Unconstitutional

School financing arrangements are most vulnerable to being declared unconstitutional in

A) State 1, where taxpayers claim they cannot afford any further increases in property taxes.
B) State 2, where there is no state income tax.
C) State 3, where annual revenues in all districts fall below projected needs.
D) State 4, where there are substantial differences in districts' average spending per student.