Which type of airspace allows for both VFR and IFR operations without restrictions?

Class G airspace is the correct choice because it is the only type of airspace that is uncontrolled, allowing both Visual Flight Rules (VFR) and Instrument Flight Rules (IFR) operations without any specific air traffic control (ATC) restrictions. In Class G airspace, pilots have the freedom to operate without the need for prior ATC clearance, as long as they comply with the general VFR and IFR rules.

Pilots flying under VFR can navigate visually as long as they maintain the minimum visibility and cloud clearance requirements, whereas IFR pilots can also operate in this airspace, typically relying on their instruments to navigate. The lack of ATC jurisdiction means that there are no mandatory communication or clearance requirements in Class G, offering a more flexible environment for both types of operations.

In contrast, Class C, Class D, and Class E airspaces have certain operational rules and requirements that must be adhered to, including communication protocols with ATC, making them less permissive compared to Class G. Therefore, Class G airspace stands out as the only one where unrestricted VFR and IFR operations are allowed.