Manor Homes plans to discontinue a segment which last year generated a contribution margin of $65,000 and incurred $40,000 in fixed costs. If the segment is discontinued, half of the fixed costs will not be avoided. If Manor Homes decides to discontinue this segment the overall effect on profits will be:
a) a decrease of $65,000
b) a decrease of $25,000
c) a decrease of $45,000
d) an increase of $45,000