1) Courts sometimes will apply default legal rules to address issues the parties did not address in their contract. What is this process called? 2) Alan signs a purchase agreement to buy a used car from Dealer. The purchase agreement is a complete integrated agreement, prepared by the Dealer. However, the purchase agreement describes the vehicle purchased as a "Green 2020 Chevy Silverado." There are two green 2020 Chevy Silverado vehicles on the Dealer's lot, and a dispute arises regarding which one was the subject of the purchase agreement. 3) True or false: In a completely integrated agreement, any evidence of subsequent modification of a contract will not be excluded by the Parol Evidence Rule? 4) Caty makes steel belt buckles. Igor makes leather belts and needs a source for belt buckles. Caty and Igor agree that Igor will buy all of the belt buckles he needs for his belt production from Caty at a price of $1 per buckle for the next 12 months. The contract includes a provision stating that Igor estimates that he will need 175-200 buckles each month. Each month, Igor calls Caty and orders 175 buckles. After performing the contract for seven months, Igor calls Caty and places a monthly order of 1,200 buckles. Caty does not have enough buckles to fill this order. If she refuses to fill the order, is she in breach of her contract with Igor? Fully explain your answer, including any rule(s) necessary to support it