Bonds issued by government and backed by U.S government are classified as

issued security
treasury bonds
U.S bonds
return security

The correct answer is: B. treasury bonds

Treasury bonds are a type of debt security issued by the United States government. They are considered to be one of the safest investments available, as they are backed by the full faith and credit of the U.S. government. Treasury bonds are issued in denominations of $100, and they mature in 10, 20, or 30 years. The interest rate on Treasury bonds is determined by the market, and it fluctuates based on supply and demand.

A. Issued security is a general term that can refer to any type of security that is issued by a company or government. It does not specifically refer to Treasury bonds.

C. U.S. bonds is a broad term that can refer to any type of bond that is issued by the United States government. It does not specifically refer to Treasury bonds.

D. Return security is a term that is not commonly used in the financial world. It is not a specific type of security.