The Yates textbook refers to the case of Sail Labrador Ltd. v. Challenger One (The)? Which of the following best reflects Yates' conclusion about the case?

A. "The contract had not been perfectly performed, so the contract was void. "

B. "The breach, although minor, rendered the contract unenforceable."

C. "The breach, although minor, rendered the contract voidable at the option of the non-breaching party."

D. The contract had been substantially performed and the option was still available.

E. The breach was considered to be inconsequential at law.