Dale Weeden owns and operates a medium-sized construction company named Weeden Builders, Inc. Recently, a local lumber supplier from whom Dale received most of the lumber used in his business closed its doors, and Dale is presently negotiating a new contract with a lumber mill, Gates Logging and Lumber Company, located in Damascus Township. The sides agree to terms in a two-year deal, with an option to extend the contract for a third year upon agreement of the parties, in which Gates Logging and Lumber will exclusively provide all its pre-sawn, finished boards to Weeden Builders for use on its construction projects.

What type of contract is described above?

A. Option Contract

B. Requirements Contract

C. Output Contract

D. Unilateral Contract