You are provided with the following information: Selling price per unit $100 variable expenses per unit $40 Fixed expenses per month $80,000 lf the selling price per unit were to drop $2, from $100 to $98 the sales volume were to increase 500 units to 4, 500 units per month and advertising expense were to increase by $1,000: the contribution margin ratio would increase. the break-even point in units would increase operating income would decrease. the break-even point in revenue would decrease