Copeland, Inc., produces X-547 in a joint manufacturing process. The company is studying whether to sell X-547 at the split-off point or upgrade the product to become Xylene. The following information has been gathered:
I. Selling price per pound of X-547
II. Variable manufacturing costs of upgrade process
III. Avoidable fixed costs of upgrade process
IV. Selling price per pound of Xylene
V. Joint manufacturing costs to produce X-547
Which items should be reviewed when making the upgrade decision?
A. I, II, and IV.
B. I, II, IV, and V.
C. I, II, III, and IV.
D. All items.