What method of healthcare financing would this be

While listening to a commercial about a new drug, Ona hears the narrator say, “If you cannot afford this medication, the company may be able to help.” She asks her mother what this means. Her mother explains that in some cases, companies are able to donate treatment to those who desperately need it but cannot afford it. What method of healthcare financing would this be an example of?

group health insurance

universal health care

social insurance program

charitable donation assistance