Answer:
Certificate of deposit
Explanation:
A certificate of deposit is one of the most common and safest investment mechanisms. It consists in depositing a fixed amount of money at a bank or any other financial institution that offers the service, for a fixed amount of time, and in exchange for a fixed interest rate.
Certificates of deposit are one of the safest investment options, but for the same reason, they are one of the least profitable. It is well known that one of the central principles of finance is that the higher the risk, the higher the profitability, and the lower the risk, the lower the profitability.