Final answer:
Destinee is using problem-focused coping by proactively seeking solutions to the stress of failing classes, such as counseling, tutoring, and time management.
Step-by-step explanation:
Destinee is demonstrating problem-focused coping, which is a proactive and systematic approach to solving the issues causing stress. After failing three classes, instead of succumbing to negative emotions, she took action by visiting a school counselor, arranging for tutoring, and adopting better time management strategies. This demonstrates her efforts to manage or alter the problem, a key aspect of problem-focused coping as described by Lazarus and Folkman. By visiting a school counselor, arranging for tutoring, and adopting better time management strategies, Destinee is actively working to improve her grades and address the root cause of her stress.