In Hughes v. Oklahoma, Oklahoma law forbid the export of natural minnows, to help protect the ...

In Hughes v. Oklahoma, Oklahoma law forbid the export of natural minnows, to help protect the state's natural resources. When this law was challenged, the Supreme Court announced a test of constitutionality that did not include which provision:
 a. whether another rule could be used to achieve the same purpose without discriminating against interstate commerce
  b. whether the rule was evenhanded with only incidental effects on interstate commerce c. whether the rule serves a legitimate local interest
  d. the specific choices are all correct
  e. none of the other choices are correct