The correct answer to this question is a certificate of deposit.
A certificate of deposit is an interest bearing account that pays a higher rate of interest than a savings account or interest bearing checking account because you are committing to leave it in the bank for a specified period of time. The CD could be for serveral months, or extend out to multiple years. Normally the interest rate will increase as the length of time increases.
37 most likely. No programming language is specified, and you didn't put what the function is, so assuming it's already implemented, MAX should display the highest number.