Write the Function as a Product of Linear and Irreducible $$f ( x ) = x ^ { 4 } - 4 x ^ { 3 } - 11 x ^ { 2 } - 4 x - 12$$

Write the function as a product of linear and irreducible quadratic factors, all with real coefficients.
- $$f ( x ) = x ^ { 4 } - 4 x ^ { 3 } - 11 x ^ { 2 } - 4 x - 12$$

A) $( x - 6 ) ( x - 2 ) \left( x ^ { 2 } + 1 \right)$
B) $( x - 6 ) ( x + 2 ) \left( x ^ { 2 } + 1 \right)$
C) $( x + 6 ) ( x + 2 ) \left( x ^ { 2 } + 1 \right)$
D) $( x - 6 ) ^ { 2 } \left( x ^ { 2 } + 1 \right)$

Correct Answer:

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