Let be a function with an average value of 2 over the interval  

The graph of over this interval could be

The graph of a function    is shown below.
 

The average value of   over the interval    is zero.

The area of the shaded region is  

If the graph is a straight line, for  , then the value of is

A.  

B.  

C.  

D.  

E.  

The graph of a function, , is shown below.
 

The average value of is