You Are Acting as Manager and Mentor to Melanie, an Employee

You are acting as manager and mentor to Melanie, an employee who has been identified as a high achiever. According to McClelland's three-needs theory, which one of the following measures would most help you motivate Melanie to do her best?

A) promising her a promotion and a raise if she reaches her targets
B) giving her a job that holds her personally responsible for finding solutions to problems
C) setting goals that are just out of her reach
D) giving her a managerial position that requires her to help others accomplish their goals