Fact Pattern 15-B1 (Questions B1-B2 Apply)

Fact Pattern 15-B1 (Questions B1-B2 apply)
Digital Storage,Inc.,offers to sell provide cloud-computing services to Entrepreneur Enterprises,Inc.,but mistakenly transposes some of the digits in the price so that $15,400 appears in the offer as $14,500.Entrepreneur Enterprises accepts the written offer.
-Refer to Fact Pattern 15-B1.Digital Storage's best defense against enforcement of the contract is that Entrepreneur Enterprises knew

A) a bilateral mistake supports the cancellation of a contract.
B) a mistake of value supports the cancellation of a contract.
C) a unilateral mistake supports the cancellation of a contract.
D) the price was below the prices of comparable devices.