When Delivering Performance Feedback, Erik's Supervisor Complimented Him on How

When delivering performance feedback, Erik's supervisor complimented him on how well he handled challenging incidents with customers. But his supervisor then suggested that Erik's attention to detail needed improvement, as evidenced by multiple instances in which Erik entered a wrong product number. Finally, the supervisor told Erik that his customer satisfaction scores were high and that he should keep up the good work. What does this suggest about his supervisor?

A) the supervisor likes his employee
B) the supervisor uses the sandwich technique
C) the supervisor develops action plans
D) the supervisor uses a halo approach