please help will upvote

Finn Enterprises manufactures celling fans that normally sell for $90 each. There are 320 defoctive fans in inventory, which cost $56 each fo manufacture. These defective units can be soid as is for \$21 each, or they can be processed further for a cost of $45 each and then sold for the normal selling price. 5 tooge Enterprises would be better off by a A. $7,680 net increase in operating income if the ceiling fans are soid as is. B. $7,680 not increase in operating income if the ceiling fans are repaired. C. $22,080 net increase in operating income if the celling fans are sold as is. D. $22,080 net increase in operating income if the ceiling fans are repaired