Given $f(x)$ And $g(x)$ , Find the Indicated Composition and State Its Domain

Multiple Choice

Given $f(x)$ and $g(x)$ , find the indicated composition and state its domain.
- $f(x) =4 x^{2}+2 x+3, g(x) =2 x-8$
Find $(\mathrm{g} \circ \mathrm{f}) (\mathrm{x})$ .

A) $4 x^{2}+4 x-2$ , all real numbers
B) $4 x^{2}+2 x-5$ , all real numbers
C) $8 x^{2}+4 x+14$ , all real numbers
D) $8 x^{2}+4 x-2$ , all real numbers