Answer: c. I want to improve my grades by working a lot harder than last year.
Explanation:
The answer c) would be the best goal for her because in that way after improving her grades by working harder she will see and decide which technique is best for her good grades.
Other options in the question can be harmful to her goals because they can make pressure on her and demotivate her. She must try first to work harder than the last year and in that way, she will see how she can set the new goal.
