A portion of the graphs of f(x), g(x), and the vertical line x = 1 are given below: Moreover, we know that f and g are continuous for all x,

and \lim _{x \rightarrow \infty} f(x)=\infty, \lim _{x \rightarrow \infty} g(x)=3, \lim _{x \rightarrow-\infty} f(x)=0, \lim _{x \rightarrow-\infty} g(x)=3 What is the area of the region bounded by these three curves? \int_{1}^{3}(g(x)-f(x)) d x \int_{-\infty}^{1}(f(x)-g(x)) d x+\int_{1}^{4}(g(x)-f(x)) d x \int_{-\infty}^{1}(f(x)-g(x)) d x \int_{1}^{4}(g(x)-f(x)) d x \int_{1}^{4}(f(x)-g(x)) d x