properties of integrals

Let f(x) be a continuous function from ℝ to ℝ such that f(x) = 1 − f(2 – x) Which one of the following options is the CORRECT value of $\int_0^2 f(x)dx$?

Let $f(x)$ be a continuous function from $\mathbb{R}$ to $\mathbb{R}$ such that $f(x) = 1 - f(2 - x)$ Which one of the following options is the CORRECT value of $\int_0^2 f(x) dx$?