You need to write a multicast delegate that accepts a DateTime argument. Which code segment should you use?

You need to write a multicast delegate that accepts a DateTime argument. Which code segment
should you use?

A. Public Delegate Function PowerDeviceOn( _
    ByVal result As Boolean, _
    ByVal autoPowerOff As DateTime) _
    As Integer
B. Public Delegate Function PowerDeviceOn( _
    ByVal sender As Object, _
    ByVal autoPowerOff As EventArgs) _
    As Boolean
C. Public Delegate Sub PowerDeviceOn( _
    ByVal autoPowerOff As DateTime)
D. Public Delegate Function PowerDeviceOn( _
    ByVal autoPowerOff As DateTime) _  
    As Boolean

Answer: C