Ace Pharmacy and Spade Pharmacy, two independent and competing companies, execute a Regional Sales Agreement whereby each party agrees to only sell to customers in their pre-assigned geographic regions at uniform prices. Under the Agreement Ace Pharmacy is assigned to the Northern Region while Spade Pharmacy is assigned to the Southern Region. The stated purpose of the agreement is to allow for the full coverage of the entire area at the highest level of efficiency. Such a contract would be considered:

Select one:

a.Ancillary and likely enforceable.

b.Illegal and unenforceable.

c.Permissible under the doctrine of fair competition.

d.Fully legal and enforceable.