Archoid's Flowering Plants provides the following information for the month of May: Actual Budget Tulips Geraniums Tulips Geraniums Sales in units 4,600 4,500 4,950 3,300 Contribution margin per unit $12 $19 $11 $23 For May, the company will report a(n). (Round any intermediary calculations two decimal places.) A. favorable market - share variance B. unfavorable sales - mix variance C. favorable sales - mix variance D. unfavorable market - share variance