Fact Pattern 16-1 Grain Co-Op, LLC and Hearty Cereals, Inc., Discuss the Terms

Fact Pattern 16-1
Grain Co-op, LLC and Hearty Cereals, Inc., discuss the terms of a contract for periodic deliveries of corn. Grain faxes Hearty a memo on Grain's letterhead that summarizes the points on which they agreed, including a two-year term. Grain begins to perform, and Hearty accepts the deliveries but refuses to pay.
-Refer to Fact Pattern 16-1. The transaction between Grain and Hearty falls within the provision of the Statute of Frauds involving

A) ​collateral promises.
B) ​the one-year rule.
C) ​sales of goods.
D) ​secondary contracts.