Form a Polynomial F(x)with Real Coefficients Having the Given Degree $- 1,2$

Form a polynomial f(x) with real coefficients having the given degree and zeros.
-Degree: 4 ; zeros: $- 1,2$ , and $1 - 2 \mathrm { i }$ .

A) $f ( x ) = x ^ { 4 } - 3 x ^ { 3 } - 3 x ^ { 2 } + 7 x + 6$
B) $f ( x ) = x ^ { 4 } - x ^ { 3 } + x ^ { 2 } + 9 x - 10$
C) $f ( x ) = x ^ { 4 } - x ^ { 3 } + 3 x ^ { 2 } - 5 x - 10$
D) $f ( x ) = x ^ { 4 } - 3 x ^ { 3 } + 5 x ^ { 2 } - x - 10$