Konerko Company sells two types of computer chips. The sales mix is 30% (Q-Chip) and 70% (Q-Chip Plus). Q-Chip has variable costs per unit of $30 and a selling price of $50. Q-Chip Plus has variable costs per unit of $35 and a selling price of $65. The weighted-average unit contribution margin for Konerko is:
A) $23.
B) $25.
C) $27.
D) $50.