Product X547 is one of the joint products in a jotnt manufacturing process. Management is considering whether to sell X - 547 at the split-off point or to process X-547 further into Xylene. The following data have been gathered: 1. Selling price of X547 2. Variable cost of processing X547 into X ylene. 3. The selling price of Xylene. 4. The joint cost of the process from which X547 is produced. Which of the above items are relevant in a decision of whether to sell the X547 as is or process it further into Xy lene? 1, II, and III 1. arid 111 11. and 111 . 1, I1, III, and IV