Answer:
Researchers would say that this is a good idea; Farrah can be discouraged if she sets expectations that are unrealistic.
Step-by-step explanation:
Basically, what Farrah's father suggested is that she take one step at a time, because she very much wants to get an "A" in math and her father knows that this is a very high goal and that if she can not make a "A" she will be unmotivated. That's why he says he'll help her take an "AB" or "B +" because that is an easier goal to achieve and once Farah gets an AB "or" B + "she will stay motivated and prepare for a larger goal, such as getting an A grade.