Final answer:
It is true that a county commission can perform both legislative and executive functions under the commission system, one of the forms of county government.
Step-by-step explanation:
A county commission can act as both a legislative and an executive branch. This statement is true. Under the commission system, an elected commission performs both legislative functions such as adopting a budget and passing resolutions, and executive functions like hiring and firing county officials. This system is one of the common forms of county government. Other forms of county government include the council-administrator system, where an elected council appoints an administrator, and the council-elected executive system, where both the council members and the executive are elected by voters. It is essential to note the different structures of local government, as these influence how municipalities and counties are managed and services such as law enforcement and park maintenance are provided.