Answer:
B
Explanation:
The domain of (x) is the range of f(x)
The range of f(x) is { 1, 4, 9, 16, 25 } , thus
The domain of (x) is { 1, 4, 9, 16, 25 } → B
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(x) is the range of f(x)(x) is { 1, 4, 9, 16, 25 } → B