Manor Company plans to discontinue a department that has a contribution margin of $25,000 and $50,000 in theed costs. Of the fixed costs, $21,000 cannot be eliminated. What would be the effect on the operating income of Manor Company of discontinuing this department? Multiple Choice An increase of $4,000. O A decrease of $4,000. O An increase of $25,000. O A decrease of $25,000. AUG tv A 3