C-01-Q180mediumsingle_mcqFor F:R→RF : \mathbb{R} \to \mathbb{R}F:R→R, F(x)=xF(x) = xF(x)=x. Then F−1(x)F^{-1}(x)F−1(x) = ?axxxb−x-x−xc1/x1/x1/xd