Forrest needs to research "money awarded to a student, often based on financial need, for a specific purpose (like tuition) by a government or an organization" to cover the remaining 15 percent of the total cost of tuition.
This option refers to grants and other types of financial aid that can help students meet their educational expenses without the need to repay the funds, which aligns with Forrest's situation since he is looking for additional funding to cover the remaining tuition costs and does not qualify for a student loan.