On January 2, 1999, Austin Tatious and Arro Gant entered into a written contract under which Tatious was to sell his Rolls Royce to Gant for $64,000.According to the contract, the parties were to perform their respective obligations on February 1, 1999.As of January 3, 1999, this contract would be classified as

A. bilateral, implied, and voidable.

B. express, executed, and quasi.

C. unilateral, unenforceable, and implied.

D. executory, bilateral, and express.