Given the function f(x) = x² + 4x -21, list the x and y intorcepts, if any of the graph of f. A. (1,0), (3,0), (-21,0) B. (-7,0), (1,0), 10₁-21) C. (7,0), (3,0), (0₁-21) D. (7,0), (3,0), (0₁-21)

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