using Irac rule

3. Read the following short problem: Alma runs a shop selling expensive designer clothes. She has three leather coats for sale, each one priced at $4,000. One of these coats has a small stain on the sleeve and Alma asks her assistant to place a special label on it saying "Stain marked - reduced to $1,000." By mistake, the assistant attaches the label to the wrong coat, one that is not stained. Just after this, Belinda enters the shop, sees the coat with the reduced price label and offers to buy it, believing it has a stain somewhere. Alma sells the coat to Belinda believing it is the stained one. Afterwards, Alma discovers the assistant's error, informs Belinda of the mistake and wants to avoid the sale. Can she? Using the summary above, write an answer to this problem, following the IRAC approach and applying the ratio in Leaf v International Galleries