Answer:
A, B and C are correct
Step-by-step explanation:
An express warranty is a warranty that is clearly expressed. In this case, the salesperson said the paint was heat resistant and could be used for painting the inside of a fireplace.
An implied warranty of fitness for a particular purpose means that the product works or it is fit for a particular use or purpose. In this case, the seller told Dustin that the paint could be used to paint the inside of a fireplace.
The warranty of merchantability is always implied, unless it is expressly disclaimed by the seller or the name of the product (e.g. sold with all faults). This means that the product should be good enough to be bought by an ordinary customer.