Which of the following statement is correct? I. If $K +\frac{1}{K}$, then $K^2 +\frac{1}{K^2} = 142 $ II. The value of $(K^2 +\frac{1}{K^2})(K-\frac{1}{K})(K^4+\frac{1}{K^4})(K+\frac{1}{K})$ is  $K^{16}-\frac{1}{K^{16}}$

Only I  Neither I nor II  Both I and II  only II

Only I