Can you identify a valid argument for which IRA and Keogh accounts are more appealing today?

Most of these accounts carry floating interest rates

These accounts now represent more than half of total deposits of FDIC insured banks

Individuals can deposit unlimited amounts in these accounts

Banks need to pay at least 6% on these accounts to depositors

Increase in FDIC insurance coverage to $250,000 on these accounts

Solvency bank quotes an APY of 8%. A small business that has an account with the bank had $3,000 in their account for half the year and $7,000 in their account for the other half of the year. How much in total interest earnings did the business make during the year?

$300

$200

$400

$150

None of the options is correct