The variables $A$, $B$, and $C$ represent polynomials where $A = x + 1$, $B = x^2 + 2x - 1$, and $C = 2x$. What is $AB + C$ in simplest form?
A$x^3 + 3x - 1$
B$x^3 + 4x - 1$
C$x^3 + 3x^2 + 3x - 1$
D$x^3 + 2x^2 - x + 1$
A$x^3 + 3x - 1$
B$x^3 + 4x - 1$
C$x^3 + 3x^2 + 3x - 1$
D$x^3 + 2x^2 - x + 1$