Find the equation of tangent for the hyperbola $\large\frac{x^2}{a^2}-\frac{y^2}{b^2}$$=1$ in parametric form?

Question

$\begin{array}{1 1}(a)\;\large\frac{x\sec\theta}{a^2}+\frac{y\tan \theta}{b}\normalsize =1\\(b)\;\large\frac{x\sec\theta}{a}-\frac{y\tan \theta}{b}\normalsize =1\\(c)\;\large\frac{x\tan\theta}{a^2}+\frac{y\sec \theta}{b}\normalsize =1\\(d)\;\text{None of these}\end{array}$