Final answer:
You align most closely with the Green Party, given your support for public ownership of essential services and a strong welfare state. A multiparty system is an example of a current party system. Democratic socialists challenge the center-left attachment to capitalism and promote public services and a living wage.
Step-by-step explanation:
If you want public ownership of energy and transportation, as well as the government providing free services in health care and education, you are most closely aligned with democratic socialists, who advocate for such policies. These positions are generally not characteristic of the Green Party, Conservative Party, or Libertarian Party. However, the description provided does have some overlap with the broader agenda of the Green Party which, among other policies, supports public ownership of essential services and a strong welfare state.
Regarding current party systems, a multiparty system is an example of the type of political system where multiple political parties across the political spectrum run for national election, and all have the capacity to gain control of government offices, separately or in coalition.
Democratic socialists challenge the center-left attachment to capitalism and promote the idea that essential services like health care and housing should not be subject to free-market forces, but should be provided as public services, a significant departure from the principles of free market capitalism advocated by parties like the Libertarian Party or the more centrist policies of the Democratic Party. They also support policies such as a living wage that ensure that all employees receive pay that goes beyond the bare minimum to a standard that can support a decent standard of living.