Express the Area of the Figure as a Polynomial in Descending

Multiple Choice

Express the area of the figure as a polynomial in descending powers of the variable $x$ .
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A) $3 x^{2}-19 x+12$
B) $-4 x^{2}+12 x+12$
C) $4 x^{2}+19 x-8$
D) $4 x^{2}+13 x-12$