Lightning Cycles, Inc., makes Lightning$-$brand motorcycles and accessories, which are distributed to authorized dealers, including Macho Motors, Inc. Macho operates dealerships in several locations. Lightning imposes restrictions on Macho to limit the areas in which they sell the bikes and insulate other dealers from direct competition. This is:

A price$-$fixing agreement.

A territorial restriction.

A resale price maintenance agreement.

A refusal to deal.