Let $$f: \mathbb{R} - \frac{-1}{2}\to \mathbb{R}$$ and $$g: \mathbb{R} - \frac{-5}{2} \to \mathbb{R}$$ be defined as $$f(x) = \frac{2x + 3}{2x + 1}$$ and $$g(x) = \frac{|x| + 1}{2x + 5}$$. Then the domain of the function fog is:

A

$$\mathbb{R} - \left\{-\frac{5}{2}\right\}$$

B

$$\mathbb{R}$$

C

$$\mathbb{R} - \left\{-\frac{7}{4}\right\}$$

D

$$\mathbb{R} - \left\{-\frac{5}{2}, -\frac{7}{4}\right\}$$