Final answer:
A certificate of deposit (CD) is the best option for Seymore.
Step-by-step explanation:
The best option for Seymore, who wants the highest interest rate and doesn't need access to his money for many years, would be a Certificate of Deposit (CD).
A CD is a type of savings account where you agree to deposit a certain amount of money for a specified period of time, typically ranging from a few months to several years. In exchange, the bank offers a higher interest rate compared to a regular savings account. Although there may be a substantial penalty for early withdrawal, this is not a concern for Seymore since he doesn't need access to his money for many years.