Genuine Seed Company and Hillside Farmers Cooperative Enter into a Contract

Genuine Seed Company and Hillside Farmers Cooperative enter into a contract for a sale of hybrid seeds. Under the perfect tender rule, Genuine Seed must ship or tender seeds to Hillside that

A) approximately conform to all of the details of the contract.
B) entirely conform to the contract except in one or two details.
C) exactly conform to the contract in every detail.
D) substantially conform to the contract in most details.