【单选题】22 Marianne Tocaros is a retail sales rep for a jewelry store. She works only on commission. Which of the following MUST BE true about Marianne? (2.2)
A.
She only earns money if she makes a sale.
B.
She makes a percentage of a sale on top of her regular salary.
C.
She needs to have a manager's approval to offer a discount to a customer.