Question 9 (1 point) Statler Enterprises sells three chemicals: alphahol, betahol and gammadol. Alphahol is the company's most profitable product (i.e. it has the highest contribution margin ratio); gammadol is the least profitable. Which one of the following with definitely decrease the firm's overall breakeven point (with regard to volume) for the upcoming period? A decrease in the selling price of gammadol An increase in the sales of alphahol relative to the sales of betahol and gammadol The purchase of new machinery and subsequent layoff of assembly workers An increase in the cost of gammadol's raw materials