Final answer:
Lana's business has $450,000 in total deposits with $150,000 in an investment account and $300,000 in a savings account. The FDIC insures each depositor up to $250,000 per account, meaning Lana would have $400,000 of her deposits protected. However, the options provided in the question do not match this correct amount, indicating a possible error in the question.
Step-by-step explanation:
When a bank fails, the Federal Deposit Insurance Corporation (FDIC) protects depositors' funds up to a certain limit. According to the FDIC, each depositor is insured up to $250,000 per qualified account.
In Lana's situation, she has $150,000 in an investment account and $300,000 in a savings account with the same bank. Since each account is treated separately, the investment account is fully protected because it is less than the $250,000 limit. However, the savings account exceeds the FDIC limit by $50,000.
Therefore, of Lana's business deposits totalling $450,000, only $400,000 is protected by the FDIC. The correct answer to how much of the business's deposits are protected by the CDIC is $400,000, but as the choices given do not include this figure, there must be an error in the question or the options provided.