Carroll Company, a manufacturer of vitamins and minerals, has been asked by a large drugstore chain to provide bottles of vitamin E. The bottles would be labeled with the name of the drugstore chain, and the chain would pay Carroll Company charges $2.30 per bottle rather than the $3.00 regular price. Which type of a decision is this?
  a.  Make-or-buy
  b.  Keep-or-drop
  c.  Special-order
  d.  Economic order quantity
  e.  Markup pricing