=+2. The sales manager had tentatively decided to promote walking shoes, estimating that operating income would be increased by $91,000 ($36 operating income per unit for 6,000 units, less promotion expenses of $125,000). The manager also believed that the selection of tennis shoes would increase operating income by $85,000

($42 operating income per unit for 5,000 units, less promotion expenses of $125,000).

State briefly your reasons for supporting or opposing the tentative decision.