Answer:
c. 3
Explanation:
You want to know the limit of the composite function f(f(x)) as x approaches zero.
Limit
The function f(x) can be evaluated at x=0. The graph shows the value to be ...
f(0) = 2
The function f(x) can also be evaluated at x=2. The graph shows the value to be ...
f(2) ≈ 3
The nearest value to f(f(0)) is 3.
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Additional comment
For a continuous function, the limit at a point is simply the value at that point. F(x) is continuous in the neighborhoods of the points of interest, so we simply need to find the function value.