Ok. here it is. can anyone help??

[R5] Consider the following code segment:
Dim I, Isum As Integer
Isum = 0
For I = 8 To 1 Step -3
Isum = Isum + I*I
Next I

What will the value of the variable I at the termination of the loop?
a. 2
b. 1
c. -1