All of the following are key differences between general obligation (GO) bonds and revenue bonds except?
1) The source of repayment for GO bonds is the issuer's general taxing power, while revenue bonds are repaid from the revenue generated by a specific project or facility.
2) GO bonds are typically considered to have lower risk than revenue bonds.
3) GO bonds are backed by the full faith and credit of the issuer, while revenue bonds are backed by the revenue generated by a specific project or facility.
4) GO bonds are typically used to finance general government operations, while revenue bonds are used to finance specific projects or facilities.