Farrah Is a B-/C+ Student in Math

Farrah is a B-/C+ student in math.She tells her father that she wants to get an A in math from now on.Knowing how much his daughter struggles in math,her father says,"I'm glad that you want to work on your math grades.Let's aim for a B or B+ next term and we'll build on that.I'll help you make a plan." Researchers would say that

A) this is a good idea; Farrah may get discouraged if she sets expectations that are unrealistic.
B) Farrah's father underestimates her and has probably just killed her motivation.
C) Farrah doesn't need a plan to reach her goal; determination is enough.
D) Farrah will resent her father for suggesting that she work up to her goal with a plan.