Not sure if this answer is right but please help and show work!

Phillippe Inc. manufactures A and B from a joint process (cost =$86,000 ). Seven thousand pounds of A can be sold at split-off for $17 per pound or processed further at an additional cost of $28,000 and then sold for $22 per pound. If Phillippe decides to process A beyond the split-off point, operating income will: Multiple Choice increase by $14,000. increase by $33,000. decrease by $14,000