A group of high school seniors performs volunteer services for patients at a nearby nursing home. The nursing home would not otherwise provide these services, such as wheeling patients in the park and reading to them. At the minimum wage rate, these services amount to $21,920, but their actual value is estimated to be $28,600. In the nursing homes statement of activities, what amount should be reported as public support?

A. $0

B. $21,920

C. $28,600

D. $6,680