please answer all questions thank you!! :)

1. In general, disclaimers of implied warranty protection are a. Permitted if they are explicit and understandable, and the buyer is aware of their existence. b. Not binding on remote purchasers with notice thereof. c. Void because they are against public policy. d. Invalid unless in writing and signed by the buyer. 2. Which of the following requirements must be met for modification of a sales contract under the Uniform Commercial Code? a. The modification must satisfy the Statute of Frauds if the contract as modified is within its provisions. b. There must be consideration present it the contract is between merchants. c. The parole evidence rule applies and thus a writing is required. d. There must be a writing if the original sales contract is in writing. 3. Dodd Company sold Barney \& Company 10.000 ball point pens. The shipment, upon inspection, was found to be nonconforming and Barney rejected the Dens, Barney purchased the pens elsewhere at a price which was $525 more than the contract price. The Dodd sales contract contained a clause which purported to reduce the statute of limitations provision of the Uniform Commercial Code to one year. Barney has done nothing about the breach except to return the pens and demand payment of the $525 damages. Dodd has totally ignored Barney's claim. The statute of limitations a. Is four years according to the Uniform Commercial Code and can not be reduced by the original agreement. b. Will totally bar recovery unless suit is commenced within the time specified in the contract. c. May be extended by the parties but not beyond five years. d. Can not be reduced by the parties to a period less than two years