The answer is C: Graduate High school.
Explanation for each option:
A. Be at least 18 years of age - This is a common requirement for obtaining an insurance agent license in many states, including Georgia. Therefore, this is a requirement.
B. Be of good character - This is typically a requirement for obtaining a professional license, as it ensures that the individual is trustworthy and reliable. Therefore, this is a requirement.
C. Graduate High school - While having a high school diploma or equivalent is often encouraged, it is not always a strict requirement for obtaining an insurance agent license in Georgia. Therefore, this is NOT a requirement.
D. Submit the application with fees - This is a standard requirement for obtaining any professional license, as it is necessary to process the application. Therefore, this is a requirement.
In summary, the requirement that is NOT necessary to obtain an insurance agent license in Georgia is graduating high school.