When must a Product Owner release each Increment? (Choose the best Answer)

A Product Owner releases each Increment when it makes sense, as stated in [2]: “The Product Owner decides when to release an Increment. This can be done at any time during or after a Sprint. The Product Owner may choose to release an Increment when it delivers enough value to customers or users, when it meets a market opportunity, when it reduces risk or uncertainty, or when it aligns with other business goals.”