Answer:
A.The graph of y=f(x) will shift left 2 units.
Step-by-step explanation:
We are given that a function

The graph y=f(x) is replacing by y=f(x-2)
We have ton find a statement that describes the best effect of replacing the graph of y=f(x) with the graph of y=f(x-2).
x is replace by x-2
It means x shift 2 units towards left side.
Suppose, 

x=1
Then, 
Therefore, f(x) will shift left 2 units to obtain y=f(x-2) .
Answer:A.The graph of y=f(x) will shift left 2 units.