Hannah has a contract dispute with Ralph over a sale of goods. Hannah wants to submit the contracts she has made with her other customers as evidence of her fair dealings. Which of the following is true?

A. Hannahs other contracts are valid evidence to help explain her contract with Ralph.

B. Hannah cannot use other contracts to explain the terms of her contract with Ralph.

C. Hannah can use her other contracts to explain her contract with Ralph if they have already been completed.

D. Hannah cannot use other contracts to explain the terms of her contract with Ralph unless they show a consistent industry or trade practice that is also consistent with Ralphs contract.