The city of Monroe enacted an ordinance requiring that 10% of all procurements of office supplies in the city for the coming year must be purchased from office supply companies owned by either African Americans or Hispanics. The City Council passed the ordinance because they felt that minority business people, especially in the office supply industry, had less general economic opportunities and they wanted to increase the opportunities for minority owned companies. Best Office Supplies, a white owned office supply firm, has challenged the Monroe ordinance on equal protection grounds. What standard should the court use in evaluating the constitutional sufficiency of the ordinance?