i need the answer immediately

ART makes and sells two types of products, A and B. Product data is as follows: ' B Unit selling price $20.00 $35.00 Sixty per cent of the sales in units are B and annual fixed expenses are $45,000. Determine the weighted average unit contribution margin: Select one: Q a. some other figure not listed here O b. $17.00 0 c. $9.50 0 d. $9.00 0 e. $4.80